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Below you will find a set of Sudoku solving strategies. You can choose a specific technique and go to its detailed explanation.
Start with basic methods, and then learn more advanced strategies useful when solving more challenging boards.
Strategy 1
[cross_hatch_scan]
Strategy 2
[row_col_solo]
Strategy 3
[cell_single_lock]
Strategy 4
[sub_unit_single]
Strategy 5
[candidate_matrix]
Strategy 6
[row_col_elim]
Strategy 7
[cell_duo_lock]
Strategy 8
[sub_unit_pair]
Strategy 9
[lock_pair_candidates]
Strategy 10
[lock_triple_candidates]
Strategy 11
[cell_triple_lock]
Strategy 12
[sub_unit_triple]
Strategy 13
[2x2_rect_vector]
Strategy 13
[3x3_tri_vector]
Strategy 15
[offset_tower_pair]
Strategy 16
[pivot_bivalue]
