Very Hard Sudoku Level 4 Game 32 Solved by X wing diagonal test
Very Hard Sudoku Level 4 Game 32 Solved by asymmetric X wing diagonal test. A pair of diagonally opposite locked digits are tested invalid for breakthrough.
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Very Hard Sudoku Level 4 Game 32 Solved by asymmetric X wing diagonal test. A pair of diagonally opposite locked digits are tested invalid for breakthrough.
Sudoku hard solution techniques are used with intensity and innovation to solve the Sudoku hard level 4 game 31 in easy steps.
Sudoku hard solution techniques are used with intensity and innovation to solve the Sudoku hard level 4 game 30 in easy steps.
Very Hard Sudoku Level 4 Game 29 Solved by X wing diagonal test. One pair of locked digits placed diagonally opposite are tested invalid for breakthrough.
The Sudoku hard level 4 game 28 is solved by identifying and exploiting an enhanced Swordfish pattern of digits formed by four pairs of locked digits.
Level 4 Game 27 Sudoku hard X wing breakthrough achieved after getting other breakthroughs by double digit parallel digit scan and single digit lock.
Sudoku level 4 game 26 solved by Sudoku hard solution techniques of single digit lock and double digit scan among others. Each technique explained.
The Sudoku Hard level 4 Game 25 is solved by identifying first an X Wing digit formation and then discovering a valid digit by X wing digit reduction.
Very hard Sudoku level 4 game 24 solved by test of linked pairs of locked digit chains resulting in conflict of same digit in two cells of same column.
Very hard Sudoku level 4 game 23 solved by test of linked pairs of locked digit chains resulting in conflict of same digit in two cells of same column.