rnb4r/2pp2pp/pp4kn/4pp2/P1P3B1/q4P2/1P1PP2P/1NBQK1NR w K - 0 13
FEN state: rnb4r/2pp2pp/pp4kn/4pp2/P1P3B1/q4P2/1P1PP2P/1NBQK1NR w K - 0 13 ; Best move: b2a3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8 and black rook at h8. Black pawn at c7, black pawn at d7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at b6, black king at g6 and black knight at h6. Black pawn at e5 and black pawn at f5. White pawn at a4, white pawn at c4 and white bishop at g4. Black queen at a3 and white pawn at f3. White pawn at b2, white pawn at d2, white pawn at e2 and white pawn at h2. White knight at b1, white bishop at c1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 13. White to move.