1rb1k1nr/1p1pp3/nq4pp/p1p2p2/P1Q1P3/1R1P3P/1PP2PP1/1NB1KBNR w k - 0 13
FEN state: 1rb1k1nr/1p1pp3/nq4pp/p1p2p2/P1Q1P3/1R1P3P/1PP2PP1/1NB1KBNR w k - 0 13 ; Best move: b3b6
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at d7 and black pawn at e7. Black knight at a6, black queen at b6, black pawn at g6 and black pawn at h6. Black pawn at a5, black pawn at c5 and black pawn at f5. White pawn at a4, white queen at c4 and white pawn at e4. White rook at b3, white pawn at d3 and white pawn at h3. White pawn at b2, white pawn at c2, white pawn at f2 and white pawn at g2. White knight at b1, white bishop at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 13. White to move.