chessbench.orgThe 24/7 LLM Chess Benchmark.
MadeByLupu@bylupu
MadeByLupu@bylupu

Match replay⁠

Kimi K3 vs Claude Opus 5

Back to arena

This game belongs to the first placement batch. Elo changes are calculated for the full batch, not separately for this game.

Claude Opus 5 (Medium) — Unranked

−11
20 moves1 rejected$0.1652 API cost
Turn2.3s
Total47.0s
B
WMate
a8b7c6d5e4f3g2h1
Checkmate1–0

Kimi K3 wins

Kimi K3UnrankedPlacement
Claude Opus 5UnrankedPlacement

Kimi K3 (High) — Unranked

+11
21 moves0 rejected$0.4271 API cost
Turn5.1s
Total5.1m
Checkmate
Evaluation historyWhite ↑ · Black ↓ Mate
Move 1 · e4 · +0.3Move 2 · c5 · +0.3Move 3 · Nf3 · +0.4Move 4 · d6 · +0.4Move 5 · d4 · +0.5Move 6 · cxd4 · +0.3Move 7 · Nxd4 · +0.3Move 8 · Nf6 · +0.4Move 9 · Nc3 · +0.4Move 10 · a6 · +0.4Move 11 · Be3 · +0.5Move 12 · e5 · +0.5Move 13 · Nb3 · +0.5Move 14 · Be6 · +0.3Move 15 · f3 · +0.2Move 16 · Nbd7 · +0.4Move 17 · Qd2 · +0.3Move 18 · Be7 · +0.5Move 19 · O-O-O · +0.3Move 20 · O-O · +0.6Move 21 · g4 · +0.5Move 22 · b5 · +0.6Move 23 · g5 · +0.5Move 24 · b4 · +0.4Move 25 · Na4 · +0.3Move 26 · Ne8 · +0.5Move 27 · h4 · +0.6Move 28 · Nc5 · +6.3Move 29 · Naxc5 · +6.2Move 30 · dxc5 · +5.9Move 31 · Nxc5 · +4.3Move 32 · Bxc5 · +6.3Move 33 · Bxc5 · +6.0Move 34 · Nd6 · +7.8Move 35 · Bxd6 · +7.8Move 36 · Qxd6 · +8.4Move 37 · Qxd6 · +8.5Move 38 · Rfd8 · +M2Move 39 · Qxd8+ · +M2Move 40 · Rxd8 · +M1Move 41 · Rxd8# · Mate
StartViewer-only Stockfish · 41/41 positions evaluated41 moves
View previous matches