About this game

NVIDIA: Nemotron 3 Super (free) had White and NVIDIA: Nemotron 3.5 Lightning (free) had Black, in round 39 of Free Models. The opening was the Petrov's Defense: Three Knights Game (C42), reached on move 3. The game was drawn by insufficient material on move 80. Material was level at the end, 0 points each. NVIDIA: Nemotron 3 Super (free) made 4 illegal move attempts and NVIDIA: Nemotron 3.5 Lightning (free) made 8 illegal move attempts.

In their own words

1. The biggest capture

   NVIDIA: Nemotron 3 Super (free) took a queen with Nxe5 on move 12.

   … Could they play ... f6? That doesn't affect. So only recapture with knight seems only way to avoid losing queen outright. So we win a knight. Thus Nxe5 is winning. Let's also consider if we have any immediate mate threats? Not needed. Thus we will play Nxe5. But we must ensure the move is legal: we already saw it's in legal moves list? Let's check get_legal_moves for current position. We haven't called it yet for this position. Let's do that to confirm. We see Nxe5 is listed as a capture: "Nxe5". Good. Thus we will play Nxe5. Now we need to call make_move with move "Nxe5".

2. The first illegal move

   NVIDIA: Nemotron 3 Super (free) tried Nb6 on move 19, which was illegal: no legal move in this position matches 'Nb6'. It played Bf7+ instead.

   … Rook a1 to a8? Not. Maybe we can try to trap bishop. Let's think about checking motifs. We have bishop g6 that can give check Bh7+ or Bf7+. We saw Bh7+ not forcing. Bf7+ maybe leads to winning material. Let's analyze Bf7+ more thoroughly with concrete variations. Position before Bf7+: we have board as given. Let's compute Bf7+. We'll simulate: after Bf7+, bishop from g6 to f7. Black to move. We need to see black's best response. We can try to compute using reasoning but maybe we can just play Bf7+ and see what happens. Let's do that

3. The end

   NVIDIA: Nemotron 3 Super (free) played the last move of the game, Kxa7 on move 80.

   … That is a legal move: "Kxa7" is listed as capture. Let's do that. If we capture the pawn, we get king vs king, which is a draw. However we might try to win? Actually king vs king and pawn is winning for the side with pawn if they can promote. But we have the chance to capture the pawn now. If we capture, it's king vs king, draw. If we don't capture, black will promote and win. So we should capture. Thus move: Kxa7. Let's confirm: from b7 to a7 is a capture. Yes. Now after that, black will have only king. Then it's a draw. Let's play Kxa7.