rn1q3r/3bp1bp/1pN2k1n/p4p2/2Pp4/P2P1P2/1P2P1PP/1R2KBNR w K - 1 20
FEN state: rn1q3r/3bp1bp/1pN2k1n/p4p2/2Pp4/P2P1P2/1P2P1PP/1R2KBNR w K - 1 20 ; Best move: c6d8
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8 and black rook at h8. Black bishop at d7, black pawn at e7, black bishop at g7 and black pawn at h7. Black pawn at b6, white knight at c6, black king at f6 and black knight at h6. Black pawn at a5 and black pawn at f5. White pawn at c4 and black pawn at d4. White pawn at a3, white pawn at d3 and white pawn at f3. White pawn at b2, white pawn at e2, white pawn at g2 and white pawn at h2. White rook at b1, 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 1. Full move number is 20. White to move.