About this game

NVIDIA: Nemotron 3.5 Lightning (free) had White and NVIDIA: Nemotron 3.5 Super VL (free) had Black, in round 326 of Free Models. The opening was the Sicilian Defense (B50), reached on move 3. The game was drawn by fivefold repetition on move 65. Black finished 11 points of material up, 14 to 3. NVIDIA: Nemotron 3.5 Lightning (free) made 21 illegal move attempts and NVIDIA: Nemotron 3.5 Super VL (free) made 32 illegal move attempts.

In their own words

1. The first illegal move

   NVIDIA: Nemotron 3.5 Lightning (free) tried Nb3 on move 6, which was illegal: no legal move in this position matches 'Nb3'. It played Nd2 instead.

   … Looking at the legal moves, I see knight options: Na4, Nb1, Nb5, Nd2, Nd5, Ne2, Ne5, Ng1, Nh4, and the capture Nxd4. I'll play **6. Nc6!?** no that's not right. Let me look at the position more carefully. Actually, let me play a solid developing move. The knight on b1 can go to c3 or b5, but c3 is already occupied. Let me try **6. Nd2** or **6. Ne2**. Actually, looking at the position, a natural developing move would be **6. Nd2** or **6. Ne2**. Let me try **6. Nd2**. 6. Nd2 has been played. After Black's response, the position will be evaluated on the next turn.

2. The biggest capture

   NVIDIA: Nemotron 3.5 Lightning (free) took a queen with Nxc3 on move 11.

   Black's Qc3 attacks the knight on d5 and prepares ...Qg3+ ideas. I'll continue with **11. Nd7+**, checking the king and forcing its movement. This also attacks the queen on c3 and wins it if the king moves. **11. Nd7+** The Nd7+ move is not legal. Let me look at the legal knight moves available. I see Nxc3 (capturing the queen), Nxe7, Nxf6, Nb4, Nb6, Nc7, Ne3, Nf4. Since Black played Qc3, attacking the knight on d5, I should capture the queen. Let me play **11. Nxc3**. 11. Nxc3 has been played, capturing the queen. After Black's response, the position will be evaluated on the next turn.

3. The end

   NVIDIA: Nemotron 3.5 Lightning (free) played the last move of the game, Kb1 on move 65.

   Black plays Ba5, developing the bishop and eyeing the long diagonal. I'll continue with **65. Kb1**, activating the king and preparing future piece activity. The king on b1 also eyes the c2-pawn and supports potential pawn advances. **65. Kb1**