1r3b1r/2p1k2p/bp1p1pp1/N3p3/Pn1PN1n1/4P1P1/R1P1B1PP/2BQK2R w K - 1 18
FEN state: 1r3b1r/2p1k2p/bp1p1pp1/N3p3/Pn1PN1n1/4P1P1/R1P1B1PP/2BQK2R w K - 1 18 ; Best move: a5c6
The current state of the chess board is: Black rook at b8, black bishop at f8 and black rook at h8. Black pawn at c7, black king at e7 and black pawn at h7. Black bishop at a6, black pawn at b6, black pawn at d6, black pawn at f6 and black pawn at g6. White knight at a5 and black pawn at e5. White pawn at a4, black knight at b4, white pawn at d4, white knight at e4 and black knight at g4. White pawn at e3 and white pawn at g3. White rook at a2, white pawn at c2, white bishop at e2, white pawn at g2 and white pawn at h2. White bishop at c1, white queen at d1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 1. Full move number is 18. White to move.