Sudoku Players' Forum (clone)

by **Hajime** » Sun Feb 09, 2025 12:53 pm

Some heart puzzles for your Valentine... (all with diagonals)

Code: Select all: ......... ..17.86.. .9..1..4. 4.......1 7.......3 .1.....6. ..6...7.. ...6.2... ....9.... ...........17.86...9..1..4.4.......17.......3.1.....6...6...7.....6.2.......9.... ED=2.9 basic methods needed ......... ..49.68.. .3..1..4. 4.......1 2.......3 .1.....6. ..6...7.. ...8.2... ....9.... ...........49.68...3..1..4.4.......12.......3.1.....6...6...7.....8.2.......9.... ED=6.6 minimal, Turbot-fish ......... ..13.78.. .7..5..4. 4.......1 7.......3 .1.....6. ..6...7.. ...8.2... ....9.... ...........13.78...7..5..4.4.......17.......3.1.....6...6...7.....8.2.......9.... ED=10.3 minimal, lots of (dynamic) forcing chains

by **philvo** » Mon Feb 10, 2025 5:34 am

Hard to break the third heart !
phil

by **m_b_metcalf** » Mon Feb 10, 2025 12:58 pm

Offering one's sweetheart a little diamond is allso not inappropriate:

Code: Select all: . . . . . . . . . . . 1 2 . 3 4 . . . 3 . . 5 . . 6 . 6 . . . . . . . 5 3 . . . . . . . 4 . 5 . . . . . 2 . . . 2 . . . 7 . . . . . 4 . 7 . . . . . . . 8 . . . . ED=2.9/2.9/2.9

Valentine 2025 (SudokuX)