1n2kr2/5ppp/rp1bpn2/p1pp4/4P1q1/P1PB2Pb/RP1PNP2/1NB1K2R w K - 0 15
FEN state: 1n2kr2/5ppp/rp1bpn2/p1pp4/4P1q1/P1PB2Pb/RP1PNP2/1NB1K2R w K - 0 15 ; Best move: d3b5
The current state of the chess board is: Black knight at b8, black king at e8 and black rook at f8. Black pawn at f7, black pawn at g7 and black pawn at h7. Black rook at a6, black pawn at b6, black bishop at d6, black pawn at e6 and black knight at f6. Black pawn at a5, black pawn at c5 and black pawn at d5. White pawn at e4 and black queen at g4. White pawn at a3, white pawn at c3, white bishop at d3, white pawn at g3 and black bishop at h3. White rook at a2, white pawn at b2, white pawn at d2, white knight at e2 and white pawn at f2. White knight at b1, white bishop at c1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 15. White to move.