r2qk2r/p2pn1bp/n3p3/Qppb1pp1/P2PPB1P/2P2P2/RP2N1P1/1N2KB1R w K - 3 13
FEN state: r2qk2r/p2pn1bp/n3p3/Qppb1pp1/P2PPB1P/2P2P2/RP2N1P1/1N2KB1R w K - 3 13 ; Best move: a5d8
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at d7, black knight at e7, black bishop at g7 and black pawn at h7. Black knight at a6 and black pawn at e6. White queen at a5, black pawn at b5, black pawn at c5, black bishop at d5, black pawn at f5 and black pawn at g5. White pawn at a4, white pawn at d4, white pawn at e4, white bishop at f4 and white pawn at h4. White pawn at c3 and white pawn at f3. White rook at a2, white pawn at b2, white knight at e2 and white pawn at g2. White knight at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 3. Full move number is 13. White to move.