rn1qkbr1/pp2pp2/6pp/2pp3n/3PPPPP/P4K2/1Pb3BR/RNB3N1 w q - 0 15
FEN state: rn1qkbr1/pp2pp2/6pp/2pp3n/3PPPPP/P4K2/1Pb3BR/RNB3N1 w q - 0 15 ; Best move: e4e5
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at b7, black pawn at e7 and black pawn at f7. Black pawn at g6 and black pawn at h6. Black pawn at c5, black pawn at d5 and black knight at h5. White pawn at d4, white pawn at e4, white pawn at f4, white pawn at g4 and white pawn at h4. White pawn at a3 and white king at f3. White pawn at b2, black bishop at c2, white bishop at g2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1 and white knight at g1. Black queenside is the only castle move available. Half move number is 0. Full move number is 15. White to move.