rnbq1rk1/1p2pp1p/2p2n1b/3p2p1/p1P1P1P1/1PN4P/PB1P1P1R/1R1QKBN1 w - - 0 13
FEN state: rnbq1rk1/1p2pp1p/2p2n1b/3p2p1/p1P1P1P1/1PN4P/PB1P1P1R/1R1QKBN1 w - - 0 13 ; Best move: e4e5
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 rook at f8 and black king at g8. Black pawn at b7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at c6, black knight at f6 and black bishop at h6. Black pawn at d5 and black pawn at g5. Black pawn at a4, white pawn at c4, white pawn at e4 and white pawn at g4. White pawn at b3, white knight at c3 and white pawn at h3. White pawn at a2, white bishop at b2, white pawn at d2, white pawn at f2 and white rook at h2. White rook at b1, white queen at d1, white king at e1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 13. White to move.