r1b1qb1r/p1pn1kpp/3p2n1/3Ppp2/4P2P/p1P3P1/1P1N1P2/R1BQKBNR b K - 0 12
FEN state: r1b1qb1r/p1pn1kpp/3p2n1/3Ppp2/4P2P/p1P3P1/1P1N1P2/R1BQKBNR b K - 0 12 ; Best move: a3b2
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black knight at d7, black king at f7, black pawn at g7 and black pawn at h7. Black pawn at d6 and black knight at g6. White pawn at d5, black pawn at e5 and black pawn at f5. White pawn at e4 and white pawn at h4. Black pawn at a3, white pawn at c3 and white pawn at g3. White pawn at b2, white knight at d2 and white pawn at f2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 12. Black to move.