TRACE · ROUND 3

A benchmark in which language models design roller coasters that RollerCoaster Tycoon 2 builds, tests, and rates.

openrouter_moonshotai_kimi-k3 · 20260728-kimi-k3-design-rerun · round 3 back to model →
events
154
tool calls
65
rejected
2
session
29:55
cost
$3.60
Session trace
  1. 0:22
    piece_geometry15 ms
    {"dir":0}
    {"deltas":[{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":0,"piece":"flat","slope_out":0},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":0,"piece":"end_station","slope_out":0},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":0,"piece":"begin_station","slope_out":0},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":0,"piece":"middle_station","slope_out":0},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":16,"piece":"up_25","slope_out":2},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":64,"piece":"up_60","slope_out":4},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":8,"piece":"flat_to_up_25","slope_out":2},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":32,"piece":"up_25_to_up_60","slope_out":4},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":32,"piece":"up_60_to_up_25","slope_out":2},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":8,"piece":"up_25_to_flat","slope_out":0},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":-16,"piece":"down_25","slope_out":6},{"bank_out":0,"dir_out":0,"dx_tiles":-1,"dy_tiles":0,"dz":-64,"piece":"down_60","slope_out":8},{"bank_out":0,"dir_out":0,"dx… (7397 chars)
  2. 0:22

    I'll analyze the previous result: 6.36 excitement, 6.56 intensity, 3 inversions, similarity 0.38 (safe). Goal: bank a solid score early, then push for higher excitement with more inversions and a taller drop. Let me get the piece geometry to plan a closed circuit.

  3. 0:22
    get_state20 msrejected
  4. 0:22
    $0.0424
  5. 1:30
    piece_geometry16 ms
    {"dir":2}
    {"deltas":[{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":0,"piece":"flat","slope_out":0},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":0,"piece":"end_station","slope_out":0},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":0,"piece":"begin_station","slope_out":0},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":0,"piece":"middle_station","slope_out":0},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":16,"piece":"up_25","slope_out":2},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":64,"piece":"up_60","slope_out":4},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":8,"piece":"flat_to_up_25","slope_out":2},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":32,"piece":"up_25_to_up_60","slope_out":4},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":32,"piece":"up_60_to_up_25","slope_out":2},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":8,"piece":"up_25_to_flat","slope_out":0},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":-16,"piece":"down_25","slope_out":6},{"bank_out":0,"dir_out":2,"dx_tiles":1,"dy_tiles":0,"dz":-64,"piece":"down_60","slope_out":8},{"bank_out":0,"dir_out":2,"dx_tiles":1,"d… (7346 chars)
  6. 1:30
    piece_geometry21 ms
    {"dir":1}
    {"deltas":[{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":0,"piece":"flat","slope_out":0},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":0,"piece":"end_station","slope_out":0},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":0,"piece":"begin_station","slope_out":0},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":0,"piece":"middle_station","slope_out":0},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":16,"piece":"up_25","slope_out":2},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":64,"piece":"up_60","slope_out":4},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":8,"piece":"flat_to_up_25","slope_out":2},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":32,"piece":"up_25_to_up_60","slope_out":4},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":32,"piece":"up_60_to_up_25","slope_out":2},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":8,"piece":"up_25_to_flat","slope_out":0},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":-16,"piece":"down_25","slope_out":6},{"bank_out":0,"dir_out":1,"dx_tiles":0,"dy_tiles":1,"dz":-64,"piece":"down_60","slope_out":8},{"bank_out":0,"dir_out":1,"dx_tiles":0,"d… (7346 chars)
  7. 1:31
    piece_geometry17 ms
    {"dir":3}
    {"deltas":[{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":0,"piece":"flat","slope_out":0},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":0,"piece":"end_station","slope_out":0},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":0,"piece":"begin_station","slope_out":0},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":0,"piece":"middle_station","slope_out":0},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":16,"piece":"up_25","slope_out":2},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":64,"piece":"up_60","slope_out":4},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":8,"piece":"flat_to_up_25","slope_out":2},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":32,"piece":"up_25_to_up_60","slope_out":4},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":32,"piece":"up_60_to_up_25","slope_out":2},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":8,"piece":"up_25_to_flat","slope_out":0},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":-16,"piece":"down_25","slope_out":6},{"bank_out":0,"dir_out":3,"dx_tiles":0,"dy_tiles":-1,"dz":-64,"piece":"down_60","slope_out":8},{"bank_out":0,"dir_out":3,"dx… (7397 chars)
  8. 1:31

    I have the dir-0 geometry. Now I need the geometry for the other three directions to plan my turnarounds and return leg precisely.

  9. 1:31
    $0.0865
  10. 6:55
    new_ride24 ms
    {"dir":0,"ride_type":51,"x":58,"y":45}
    {"cursor":{"bank":0,"dir":0,"slope":0,"x":58,"y":45,"z":112},"ride_id":0}
  11. 6:56

    I now have full geometry for all directions. I've planned a complete closed circuit on paper: **Plan "Quad Threat"** — start (58,45) facing -x (dir 0), avoiding the lake: - **Leg A** (y=45): station → 14-piece chain lift to z=352 → 60° triple drop → left loop → right loop - **U-turn** (right turns) → **Leg B** (y=50, +x): corkscrew pair (left-up/right-down), mirrored corkscrew pair (right-up/left-down) = 4 more inversions, 2 airtime hills, 2 more vertical loops (L then R to keep lane) - **U-turn** → **Leg C** (y=45): brakes + flats back to (58,45). Net displacement verified: (0,0), dir 0, slope 0. That's 4 loops + 4 corkscrews = up to 8 inversions. Let me start building — station and lift first.

  12. 6:56
    $0.3344
  13. 7:06
    place_pieces33 ms
    {"pieces":["begin_station","middle_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"}]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":0,"slope":0,"x":38,"y":45,"z":352},"placed_this_call":20,"total_placed":20}
  14. 7:06

    Ride created at (58,45). Building the station and 14-piece chain lift.

  15. 7:06
    $0.0707
  16. 7:16
    place_pieces19 ms
    {"pieces":["flat_to_down_60","down_60","down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":0,"slope":0,"x":25,"y":45,"z":112},"placed_this_call":11,"total_placed":31}
  17. 7:16

    Lift complete at z=352. Now the 60° triple drop and the first two vertical loops.

  18. 7:16
    $0.0202
  19. 7:26
    place_pieces19 ms
    {"pieces":["right_turn_5","right_turn_5","flat","flat","flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":29,"y":50,"z":112},"placed_this_call":5,"total_placed":36}
  20. 7:26

    Drop and two loops done. Now the U-turn (right turns) and the corkscrew section — first the turns, then corkscrews separately to catch any rejection cleanly.

  21. 7:26
    $0.0228
  22. 7:36

    U-turn complete, now heading +x. Placing the two corkscrew pairs (4 inversions).

  23. 7:36
    place_pieces16 ms
    {"pieces":["left_corkscrew_up","right_corkscrew_down","right_corkscrew_up","left_corkscrew_down"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":35,"y":50,"z":112},"placed_this_call":4,"total_placed":40}
  24. 7:36
    $0.1390
  25. 7:44

    Corkscrews accepted — 4 inversions banked in. Now the two airtime hills.

  26. 7:44
    place_pieces31 ms
    {"pieces":["flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":47,"y":50,"z":112},"placed_this_call":12,"total_placed":52}
  27. 7:44
    $0.0189
  28. 7:52

    Hills done. Now loops 3 and 4 (left then right to stay in the y=50 lane).

  29. 7:52
    place_pieces18 ms
    {"pieces":["flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":55,"y":50,"z":112},"placed_this_call":6,"total_placed":58}
  30. 7:52
    $0.0200
  31. 8:30

    All 4 loops placed. Now the return leg: 10 flats, the second U-turn, and the braked final approach into the station.

  32. 8:30
    place_pieces23 ms
    {"pieces":["flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","right_turn_5","right_turn_5","flat","flat",{"speed":10,"t":"brakes"},{"speed":10,"t":"brakes"},"flat","flat"]}
    {"circuit_closed":true,"cursor":{"bank":0,"dir":0,"slope":0,"x":58,"y":45,"z":112},"placed_this_call":18,"total_placed":76}
  33. 8:30
    $0.0228
  34. 8:43

    **Circuit closed!** Cursor returned to (58,45) exactly as planned. Testing now to bank the score.

  35. 8:43
    finish_and_test633 ms
    {"bounds":{"max_tile_x":67,"max_tile_y":53,"max_z":376,"min_tile_x":23,"min_tile_y":44,"min_z":112},"placed_pieces":["begin_station","middle_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"},"flat_to_down_60","down_60","down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat","right_turn_5","right_turn_5","flat","flat","flat","left_corkscrew_up","right_corkscrew_down","right_corkscrew_up","left_corkscrew_down","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertica… (2215 chars)
  36. 8:43
    $0.0206
  37. 10:29
    demolish27 ms
    {"demolished":0}
  38. 10:29

    **Score banked: 6.99** (up from last round's 6.36)! But intensity is **10.20** — just over the ~10 threshold that tanks excitement. Similarity 0.33 is safe, and 6 inversions counted. Key diagnosis: my **unbanked** U-turns are taken at high speed → lateral G spiked to 2.91 (last round used banked turns and had 6.56 intensity). Fix: rebuild the identical layout but with **banked** U-turns (flat_to_right_bank + banked_right_turn_5 ×2 + right_bank_to_flat). Same displacement (+1,+5) and (-1,-5), so the circuit closure math is unchanged. Since best_result keeps the 6.99, rebuilding is risk-free.

  39. 10:29
    $0.1056
  40. 10:36
    new_ride20 ms
    {"dir":0,"ride_type":51,"x":58,"y":45}
    {"cursor":{"bank":0,"dir":0,"slope":0,"x":58,"y":45,"z":112},"ride_id":0}
  41. 10:36
    $0.0406
  42. 10:46
    place_pieces15 ms
    {"pieces":["begin_station","middle_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"}]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":0,"slope":0,"x":38,"y":45,"z":352},"placed_this_call":20,"total_placed":20}
  43. 10:46
    $0.0264
  44. 10:52
    place_pieces28 ms
    {"pieces":["flat_to_down_60","down_60","down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":0,"slope":0,"x":25,"y":45,"z":112},"placed_this_call":11,"total_placed":31}
  45. 10:52
    $0.0255
  46. 11:02
    place_pieces19 ms
    {"pieces":["flat_to_right_bank","banked_right_turn_5","banked_right_turn_5","right_bank_to_flat","flat","flat","flat","left_corkscrew_up","right_corkscrew_down","right_corkscrew_up","left_corkscrew_down"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":35,"y":50,"z":112},"placed_this_call":11,"total_placed":42}
  47. 11:02
    $0.0275
  48. 11:10

    Banked U-turn and corkscrews in. Now the hills and final two loops.

  49. 11:10
    place_pieces19 ms
    {"pieces":["flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":55,"y":50,"z":112},"placed_this_call":18,"total_placed":60}
  50. 11:10
    $0.0283
  51. 11:27
    place_pieces22 ms
    {"pieces":["flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_right_bank","banked_right_turn_5","banked_right_turn_5","right_bank_to_flat","flat","flat",{"speed":10,"t":"brakes"},{"speed":10,"t":"brakes"},"flat","flat"]}
    {"circuit_closed":true,"cursor":{"bank":0,"dir":0,"slope":0,"x":58,"y":45,"z":112},"placed_this_call":20,"total_placed":80}
  52. 11:28
    $0.0403
  53. 11:36

    Circuit closed with banked turns. Testing.

  54. 11:37
    finish_and_test670 ms
    {"bounds":{"max_tile_x":68,"max_tile_y":53,"max_z":376,"min_tile_x":22,"min_tile_y":44,"min_z":112},"placed_pieces":["begin_station","middle_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"},"flat_to_down_60","down_60","down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat","flat_to_right_bank","banked_right_turn_5","banked_right_turn_5","right_bank_to_flat","flat","flat","flat","left_corkscrew_up","right_corkscrew_down","right_corkscrew_up","left_corkscrew_down","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","left_vertica… (2306 chars)
  55. 11:37
    $0.0199
  56. 16:43

    Banked turns barely helped (7.01, intensity 10.18) — so the lateral G comes from the **corkscrews** themselves, not the U-turns. Analysis: last round had 3 inversions → 6.56 intensity; this has 6 → 10.18. Each inversion adds ~1.2. I need to drop ~1 inversion-equivalent to get safely under 10. New plan (v3): remove the **second corkscrew pair** (the highest-lateral element) and replace it with **3 gentle s-bends** that produce the same lane shift (dy-3, dx+9) with minimal intensity. Keeps 5 inversions (4 loops + 1 corkscrew pair), zero stall risk. 7.01 is banked, so this is a free shot at beating it.

  57. 16:43
    demolish26 ms
    {"demolished":0}
  58. 16:43
    $0.1876
  59. 16:51
    new_ride20 ms
    {"dir":0,"ride_type":51,"x":58,"y":45}
    {"cursor":{"bank":0,"dir":0,"slope":0,"x":58,"y":45,"z":112},"ride_id":0}
  60. 16:51
    $0.0626
  61. 17:01
    place_pieces21 ms
    {"pieces":["begin_station","middle_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"}]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":0,"slope":0,"x":39,"y":45,"z":336},"placed_this_call":19,"total_placed":19}
  62. 17:01
    $0.0329
  63. 17:19

    I sent one `up_25` short (z=336, cursor x=39). Fixing: undo the flat top, add the missing chained `up_25`, then re-cap.

  64. 17:19
    undo_piece34 ms
    {"cursor":{"bank":0,"dir":0,"slope":2,"x":40,"y":45,"z":328},"pieces_placed":18,"removed":"up_25_to_flat"}
  65. 17:19
    $0.0378
  66. 17:24
    place_pieces25 ms
    {"pieces":[{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"}]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":0,"slope":0,"x":38,"y":45,"z":352},"placed_this_call":2,"total_placed":20}
  67. 17:24
    $0.0326
  68. 17:32
    place_pieces19 ms
    {"pieces":["flat_to_down_60","down_60","down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":0,"slope":0,"x":25,"y":45,"z":112},"placed_this_call":11,"total_placed":31}
  69. 17:32
    $0.0339
  70. 17:41
    place_pieces38 ms
    {"pieces":["flat_to_right_bank","banked_right_turn_5","banked_right_turn_5","right_bank_to_flat","flat","flat","flat","left_corkscrew_up","right_corkscrew_down","s_bend_right","s_bend_right","s_bend_right"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":41,"y":50,"z":112},"placed_this_call":12,"total_placed":43}
  71. 17:41
    $0.0360
  72. 17:50

    One corkscrew pair + s-bends in. Now hills and the last two loops.

  73. 17:50
    place_pieces22 ms
    {"pieces":["flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":61,"y":50,"z":112},"placed_this_call":18,"total_placed":61}
  74. 17:50
    $0.0366
  75. 17:59
    place_pieces21 ms
    {"pieces":["flat","flat","flat","flat","flat_to_right_bank","banked_right_turn_5","banked_right_turn_5","right_bank_to_flat","flat","flat",{"speed":10,"t":"brakes"},{"speed":10,"t":"brakes"},"flat","flat"]}
    {"circuit_closed":true,"cursor":{"bank":0,"dir":0,"slope":0,"x":58,"y":45,"z":112},"placed_this_call":14,"total_placed":75}
  76. 17:59
    $0.0385
  77. 18:04

    Circuit closed with the 5-inversion layout. Testing.

  78. 18:04
    finish_and_test152 ms
    {"bounds":{"max_tile_x":68,"max_tile_y":53,"max_z":376,"min_tile_x":22,"min_tile_y":44,"min_z":112},"placed_pieces":["begin_station","middle_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"},"flat_to_down_60","down_60","down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat","flat_to_right_bank","banked_right_turn_5","banked_right_turn_5","right_bank_to_flat","flat","flat","flat","left_corkscrew_up","right_corkscrew_down","s_bend_right","s_bend_right","s_bend_right","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","left_verti… (2287 chars)
  79. 18:04
    $0.0361
  80. 21:31

    v3 result: intensity dropped to 9.79 but excitement *fell* to 6.83 — the corkscrew pair was worth more excitement (+0.18) than the intensity penalty it caused. So the penalty at 10.18 is gentle, not a cliff. **7.01 remains banked.** Learning: inversions are net-positive even slightly over intensity 10. New experiment (v4): take the 6-inversion v2 layout and add a **third loop pair** after loop 4 (at moderate post-hill speed), replacing 8 of the 10 flats — same cursor math, so closure is preserved. 8 inversions total. Since 7.01 is banked, this is a free moonshot.

  81. 21:31
    demolish28 ms
    {"demolished":0}
  82. 21:31
    $0.1430
  83. 21:37
    new_ride21 ms
    {"dir":0,"ride_type":51,"x":58,"y":45}
    {"cursor":{"bank":0,"dir":0,"slope":0,"x":58,"y":45,"z":112},"ride_id":0}
  84. 21:37
    $0.0440
  85. 21:46
    place_pieces18 ms
    {"pieces":["begin_station","middle_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"}]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":0,"slope":0,"x":38,"y":45,"z":352},"placed_this_call":20,"total_placed":20}
  86. 21:46
    $0.0309
  87. 21:53
    place_pieces31 ms
    {"pieces":["flat_to_down_60","down_60","down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":0,"slope":0,"x":25,"y":45,"z":112},"placed_this_call":11,"total_placed":31}
  88. 21:53
    $0.0296
  89. 22:05
    place_pieces16 ms
    {"pieces":["flat_to_right_bank","banked_right_turn_5","banked_right_turn_5","right_bank_to_flat","flat","flat","flat","left_corkscrew_up","right_corkscrew_down","right_corkscrew_up","left_corkscrew_down"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":35,"y":50,"z":112},"placed_this_call":11,"total_placed":42}
  90. 22:05
    $0.2360
  91. 22:12
    place_pieces16 ms
    {"pieces":["flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":55,"y":50,"z":112},"placed_this_call":18,"total_placed":60}
  92. 22:13
    $0.0283
  93. 22:25
    place_pieces18 ms
    {"pieces":["flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat","flat","flat","flat_to_right_bank","banked_right_turn_5","banked_right_turn_5","right_bank_to_flat","flat","flat",{"speed":10,"t":"brakes"},{"speed":10,"t":"brakes"},"flat","flat"]}
    {"circuit_closed":true,"cursor":{"bank":0,"dir":0,"slope":0,"x":58,"y":45,"z":112},"placed_this_call":18,"total_placed":78}
  94. 22:25

    Now the third loop pair, then the banked U-turn and return leg.

  95. 22:25
    $0.0292
  96. 22:28
    finish_and_test148 ms
    {"bounds":{"max_tile_x":68,"max_tile_y":53,"max_z":376,"min_tile_x":22,"min_tile_y":44,"min_z":112},"placed_pieces":["begin_station","middle_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"},"flat_to_down_60","down_60","down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat","flat_to_right_bank","banked_right_turn_5","banked_right_turn_5","right_bank_to_flat","flat","flat","flat","left_corkscrew_up","right_corkscrew_down","right_corkscrew_up","left_corkscrew_down","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","left_vertica… (2375 chars)
  97. 22:28

    Circuit closed with 8 inversions. Testing.

  98. 22:28
    $0.0261
  99. 26:24
    demolish19 ms
    {"demolished":0}
  100. 26:24

    8 inversions spiked intensity to **10.94** and excitement got *tanked* to 5.28 — confirming a sharp nonlinear penalty above ~10.5. The sweet spot is clearly 6 inversions at intensity ~10.2 (v2 = 7.01, still banked). Final experiment (v7): keep **6 inversions** but make them all **vertical loops** (0 corkscrews) — loops have a better excitement/intensity ratio than corkscrews (no twisting lateral G). I swap the corkscrew 4-pack for a loop pair with identical net displacement, so closure math is unchanged.

  101. 26:24
    $0.0770
  102. 26:47
    new_ride17 ms
    {"dir":0,"ride_type":51,"x":58,"y":45}
    {"cursor":{"bank":0,"dir":0,"slope":0,"x":58,"y":45,"z":112},"ride_id":0}
  103. 26:47
    $0.2509
  104. 26:56
    place_pieces18 ms
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    {"circuit_closed":false,"cursor":{"bank":0,"dir":0,"slope":0,"x":38,"y":45,"z":352},"placed_this_call":20,"total_placed":20}
  105. 26:56
    $0.0472
  106. 27:04
    place_pieces15 ms
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    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":35,"y":50,"z":112},"placed_this_call":22,"total_placed":42}
  107. 27:04
    $0.2534
  108. 27:08
    place_pieces16 ms
    {"pieces":["flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":55,"y":50,"z":112},"placed_this_call":18,"total_placed":60}
  109. 27:08
    $0.0285
  110. 27:10
    place_pieces14 ms
    {"pieces":["flat","flat","flat","flat","flat","flat","flat","flat","flat","flat","flat_to_right_bank","banked_right_turn_5","banked_right_turn_5","right_bank_to_flat","flat","flat",{"speed":10,"t":"brakes"},{"speed":10,"t":"brakes"},"flat","flat"]}
    {"circuit_closed":true,"cursor":{"bank":0,"dir":0,"slope":0,"x":58,"y":45,"z":112},"placed_this_call":20,"total_placed":80}
  111. 27:11
    $0.0277
  112. 27:13

    Circuit closed with 6 loops, 0 corkscrews. Testing.

  113. 27:14
    finish_and_test142 ms
    {"ticks":25000}
    {"bounds":{"max_tile_x":68,"max_tile_y":51,"max_z":376,"min_tile_x":22,"min_tile_y":44,"min_z":112},"placed_pieces":["begin_station","middle_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"},"flat_to_down_60","down_60","down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat","flat_to_right_bank","banked_right_turn_5","banked_right_turn_5","right_bank_to_flat","flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","l… (2316 chars)
  114. 27:14
    $0.0265
  115. 27:36
    demolish21 ms
    {"demolished":0}
  116. 27:36

    **Breakthrough!** v7: excitement 7.01 but intensity crashed to **7.36** (lateral G 1.32 — the corkscrews were the entire lateral/intensity problem). Now I have massive intensity headroom while keeping 6 inversions. Final move (v8): add one **more loop pair** into the long flat section (same dx displacement, closure preserved) → 8 loops total, estimated intensity ~8.2 (safely under 10), excitement should climb well above 7.01.

  117. 27:36
    $0.0545
  118. 27:49
    new_ride19 ms
    {"dir":0,"ride_type":51,"x":58,"y":45}
    {"cursor":{"bank":0,"dir":0,"slope":0,"x":58,"y":45,"z":112},"ride_id":0}
  119. 27:49
    $0.0281
  120. 27:53
    place_pieces18 ms
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    {"circuit_closed":false,"cursor":{"bank":0,"dir":0,"slope":0,"x":38,"y":45,"z":352},"placed_this_call":20,"total_placed":20}
  121. 27:53
    $0.0324
  122. 27:56
    place_pieces14 ms
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    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":35,"y":50,"z":112},"placed_this_call":22,"total_placed":42}
  123. 27:56
    $0.0300
  124. 28:00
    place_pieces13 ms
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    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":55,"y":50,"z":112},"placed_this_call":18,"total_placed":60}
  125. 28:00
    $0.0296
  126. 28:07
    place_pieces28 ms
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    {"circuit_closed":true,"cursor":{"bank":0,"dir":0,"slope":0,"x":58,"y":45,"z":112},"placed_this_call":18,"total_placed":78}
  127. 28:07

    Now the 4th loop pair (8 loops total) plus the return leg.

  128. 28:07
    $0.0334
  129. 28:10
    finish_and_test741 ms
    {"ticks":25000}
    {"bounds":{"max_tile_x":68,"max_tile_y":51,"max_z":376,"min_tile_x":22,"min_tile_y":44,"min_z":112},"placed_pieces":["begin_station","middle_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"},"flat_to_down_60","down_60","down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat","flat_to_right_bank","banked_right_turn_5","banked_right_turn_5","right_bank_to_flat","flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","up_25","up_25_to_flat","flat_to_down_25","down_25","down_25_to_flat","flat_to_up_25","l… (2387 chars)
  130. 28:10
    $0.0282
  131. 29:03
    demolish21 ms
    {"demolished":0}
  132. 29:03

    **New best: 7.06!** (8 loops, intensity 8.18 — safely under 10, similarity 0.36 safe). But the gain was small (+0.05), meaning loops at moderate speed have diminishing returns, and I still have ~2 points of intensity headroom. One more shot (v11): keep the 8-loop skeleton but swap the two gentle 25° hills for **sharp 60° hills** — sharper crests = more airtime (negative-G excitement) and fun positive G, using the intensity headroom I just earned. Same dx per slot, closure preserved.

  133. 29:03
    $0.0948
  134. 29:06
    new_ride16 ms
    {"dir":0,"ride_type":51,"x":58,"y":45}
    {"cursor":{"bank":0,"dir":0,"slope":0,"x":58,"y":45,"z":112},"ride_id":0}
  135. 29:06
    $0.0302
  136. 29:10
    place_pieces26 ms
    {"pieces":["begin_station","middle_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"}]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":0,"slope":0,"x":38,"y":45,"z":352},"placed_this_call":20,"total_placed":20}
  137. 29:10
    $0.0329
  138. 29:13
    place_pieces18 ms
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    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":35,"y":50,"z":112},"placed_this_call":22,"total_placed":42}
  139. 29:13
    $0.0317
  140. 29:16
    place_pieces18 ms
    {"pieces":["flat_to_up_60","up_60_to_flat","flat_to_down_60","down_60_to_flat","flat","flat","flat_to_up_60","up_60_to_flat","flat_to_down_60","down_60_to_flat","flat","flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat"]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":2,"slope":0,"x":55,"y":50,"z":112},"placed_this_call":18,"total_placed":60}
  141. 29:16
    $0.0319
  142. 29:20
    place_pieces30 ms
    {"pieces":["flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat","flat","flat","flat_to_right_bank","banked_right_turn_5","banked_right_turn_5","right_bank_to_flat","flat","flat",{"speed":10,"t":"brakes"},{"speed":10,"t":"brakes"},"flat","flat"]}
    {"circuit_closed":true,"cursor":{"bank":0,"dir":0,"slope":0,"x":58,"y":45,"z":112},"placed_this_call":18,"total_placed":78}
  143. 29:20
    $0.0322
  144. 29:23
    finish_and_test683 ms
    {"ticks":25000}
    {"bounds":{"max_tile_x":68,"max_tile_y":51,"max_z":376,"min_tile_x":22,"min_tile_y":44,"min_z":112},"placed_pieces":["begin_station","middle_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"},"flat_to_down_60","down_60","down_60","down_60","down_60_to_flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat","flat_to_right_bank","banked_right_turn_5","banked_right_turn_5","right_bank_to_flat","flat","flat_to_up_25","left_vertical_loop","down_25_to_flat","flat_to_up_25","right_vertical_loop","down_25_to_flat","flat_to_up_60","up_60_to_flat","flat_to_down_60","down_60_to_flat","flat","flat","flat_to_up_60","up_60_to_flat","flat_to_down_60","down_60_to_flat","flat","flat","flat_to_up_25","left_vert… (2381 chars)
  145. 29:23
    $0.0301
  146. 29:43
    undo_piece17 msrejected
  147. 29:43

    **New best: 7.24!** The 60° hills delivered — strong airtime (negative G -2.65) feeds excitement, intensity 8.92 still safe. One final experiment (v12): swap the last loop pair for **two more sharp 60° hills** (6 loops + 4 sharp hills) — if airtime is what's paying, this should push further. 7.24 is banked either way.

  148. 29:43
    $0.0508
  149. 29:48
    demolish19 ms
    {"demolished":0}
  150. 29:48
    $0.0338
  151. 29:51
    new_ride14 ms
    {"dir":0,"ride_type":51,"x":58,"y":45}
    {"cursor":{"bank":0,"dir":0,"slope":0,"x":58,"y":45,"z":112},"ride_id":0}
  152. 29:51
    $0.0314
  153. 29:55
    place_pieces27 ms
    {"pieces":["begin_station","middle_station","middle_station","end_station",{"chain":true,"t":"flat_to_up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25"},{"chain":true,"t":"up_25_to_flat"}]}
    {"circuit_closed":false,"cursor":{"bank":0,"dir":0,"slope":0,"x":38,"y":45,"z":352},"placed_this_call":20,"total_placed":20}
  154. 29:55
    $0.0340

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