1rbq1r2/pppk1pbp/3p2p1/1P5n/4p2n/B2NP1P1/P1PP1P1P/1R1QKBNR w K - 12 15
FEN state: 1rbq1r2/pppk1pbp/3p2p1/1P5n/4p2n/B2NP1P1/P1PP1P1P/1R1QKBNR w K - 12 15 ; Best move: d3b4
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8 and black rook at f8. Black pawn at a7, black pawn at b7, black pawn at c7, black king at d7, black pawn at f7, black bishop at g7 and black pawn at h7. Black pawn at d6 and black pawn at g6. White pawn at b5 and black knight at h5. Black pawn at e4 and black knight at h4. White bishop at a3, white knight at d3, white pawn at e3 and white pawn at g3. White pawn at a2, white pawn at c2, white pawn at d2, white pawn at f2 and white pawn at h2. White rook at b1, 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 12. Full move number is 15. White to move.