rnb2bnr/3pk3/pB6/P4p1p/pp1Np3/3P1NPP/4PK1R/5B2 w - - 2 23
FEN state: rnb2bnr/3pk3/pB6/P4p1p/pp1Np3/3P1NPP/4PK1R/5B2 w - - 2 23 ; Best move: d3e4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at d7 and black king at e7. Black pawn at a6 and white bishop at b6. White pawn at a5, black pawn at f5 and black pawn at h5. Black pawn at a4, black pawn at b4, white knight at d4 and black pawn at e4. White pawn at d3, white knight at f3, white pawn at g3 and white pawn at h3. White pawn at e2, white king at f2 and white rook at h2. White bishop at f1. Both players have exhausted their castles. Half move number is 2. Full move number is 23. White to move.