rn2qb1r/1p1bpp1n/3kp3/p1p3pp/4P2P/1P1P4/P1P1QPPN/1RB1KB1R w K - 3 16
FEN state: rn2qb1r/1p1bpp1n/3kp3/p1p3pp/4P2P/1P1P4/P1P1QPPN/1RB1KB1R w K - 3 16 ; Best move: e4e5
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black bishop at d7, black pawn at e7, black pawn at f7 and black knight at h7. Black king at d6 and black pawn at e6. Black pawn at a5, black pawn at c5, black pawn at g5 and black pawn at h5. White pawn at e4 and white pawn at h4. White pawn at b3 and white pawn at d3. White pawn at a2, white pawn at c2, white queen at e2, white pawn at f2, white pawn at g2 and white knight at h2. White rook at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 3. Full move number is 16. White to move.