1rb1k1nr/ppqpp1bp/2n3p1/2p2pP1/P7/1N5P/1PPPPP2/RNBQKBR1 w k - 4 13
FEN state: 1rb1k1nr/ppqpp1bp/2n3p1/2p2pP1/P7/1N5P/1PPPPP2/RNBQKBR1 w k - 4 13 ; Best move: e2e3
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 a7, black pawn at b7, black queen at c7, black pawn at d7, black pawn at e7, black bishop at g7 and black pawn at h7. Black knight at c6 and black pawn at g6. Black pawn at c5, black pawn at f5 and white pawn at g5. White pawn at a4. White knight at b3 and white pawn at h3. White pawn at b2, white pawn at c2, white pawn at d2, white pawn at e2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at g1. Black kingside is the only castle move available. Half move number is 4. Full move number is 13. White to move.