rnbqkbn1/2pp1p1r/p6p/4p3/pP2P3/2P5/PB1P1K1P/RN3bNR w q - 0 13
FEN state: rnbqkbn1/2pp1p1r/p6p/4p3/pP2P3/2P5/PB1P1K1P/RN3bNR w q - 0 13 ; Best move: g1f3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at c7, black pawn at d7, black pawn at f7 and black rook at h7. Black pawn at a6 and black pawn at h6. Black pawn at e5. Black pawn at a4, white pawn at b4 and white pawn at e4. White pawn at c3. White pawn at a2, white bishop at b2, white pawn at d2, white king at f2 and white pawn at h2. White rook at a1, white knight at b1, black bishop at f1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 13. White to move.