About this game

Ling 3.0 Flash Fin (free) had White and NVIDIA: Nemotron 3 Ultra (free) had Black, in round 105 of Free Models. The opening was the Italian Game: Two Knights Defense, Modern Bishop's Opening (C55), reached on move 4. The game was drawn by insufficient material on move 65. Material was level at the end, 0 points each. Ling 3.0 Flash Fin (free) made 4 illegal move attempts and NVIDIA: Nemotron 3 Ultra (free) made 6 illegal move attempts.

In their own words

1. The first illegal move

   Ling 3.0 Flash Fin (free) tried Nd2 on move 12, which was illegal: 'Nd2' is ambiguous — more than one piece can play it. Disambiguate by file or rank, for example Nbd2 or R1e2. It played Nfd2 instead.

   … The black knight captures my f3 knight. So if I play Nc3 (e4 to c3), the f3 knight is still on f3 and is attacked by the d4 knight. Black can capture: ...Nxf3. Then I need to deal with the lost knight. So Nc3 is not great because the f3 knight gets captured. What about Ng3 (e4 to g3)? After Ng3, the e4 knight moves to g3. The f3 knight remains on f3, which is still attacked by the d4 knight. Same problem as Nc3: black can play ...Nxf3. So both Nc3 and Ng3 leave the f3 knight vulnerable. Only Nfd2 moves the f3 knight to safety. So Nfd2 is clearly the best move. Let me play it.

2. The biggest capture

   Ling 3.0 Flash Fin (free) took a queen with Nxd8+ on move 18.

   … wait, the knight just captured the queen. So the queen is gone. Black has no queen on d8 anymore. Hmm, wait. After Nxd8, the black queen on d8 is captured by the knight. So the queen is gone. Black has no queen. So black can't play ...Qa8 because the queen is gone. So black's options after Nxd8 are: 1. Bxd8 (bishop captures knight) 2. Something else (but the knight is on d8 and black needs to deal with it) If black doesn't recapture, the knight stays on d8 and black has no queen. That's terrible for black. So black will likely recapture with the bishop. OK, let me play **Nxd8**.

3. The end

   NVIDIA: Nemotron 3 Ultra (free) played the last move of the game, Kxa6 on move 65.

   … As black, I'm losing. The best I can do is capture the pawn and draw. But wait - the game might already be a win for white if I don't capture. Let me think... Actually, I'm black. White has a pawn on a6 about to promote. Black king on a5. If black plays Kxa6, it's stalemate? No, black king would be on a6, white king on f6. Not stalemate, just king vs king = draw. If black doesn't capture, white plays a8=Q and wins. So as black, I should capture the pawn to draw. But the instructions say "Play to win." But I'm black and losing. The only drawing move is Kxa6. Let me play Kxa6.