rnb2b1r/1p1pk1p1/p1p5/4pp1p/2N1P1QP/1P1R4/P1PB1P2/R3KBN1 w Q - 0 13
FEN state: rnb2b1r/1p1pk1p1/p1p5/4pp1p/2N1P1QP/1P1R4/P1PB1P2/R3KBN1 w Q - 0 13 ; Best move: g4f5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at b7, black pawn at d7, black king at e7 and black pawn at g7. Black pawn at a6 and black pawn at c6. Black pawn at e5, black pawn at f5 and black pawn at h5. White knight at c4, white pawn at e4, white queen at g4 and white pawn at h4. White pawn at b3 and white rook at d3. White pawn at a2, white pawn at c2, white bishop at d2 and white pawn at f2. White rook at a1, white king at e1, white bishop at f1 and white knight at g1. White queenside is the only castle move available. Half move number is 0. Full move number is 13. White to move.