Kakuro Cross Sums is the puzzle worldРІР‚в„ўs best-kept secret. Called Cross Sums in the USA, Kakuro in the UK, and Kakro in Japan, itРІР‚в„ўs a fun, entertaining and highly addictive number puzzle game that will challenge and perplex you. The rules are simple, but completing a puzzle takes practice and concentration. Play unlimited Kakuro Cross Sums on your PC. Try it and see why millions prefer it to Sudoku!