CHESS PROBLEMchess problem · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:CHESS PROBLEMTier 1Ordinal135Pythagorean54Classical128Reverse189Reverse Reduction63Standard486Final Large1046Ordinal108Reduced45Atbash495Isopsephy1332Ordinal153Abjad427