Third level Sudoku

This is the 11th game play session at Sudoku third level of hardness.The specialty of this game has been use of large number of cycles that helped at the start. Interesting has been the four cell single digit rectangular lockdown cycle, a special structure that provided the much needed breakthrough in this specially difficult Sudoku game. Solution of each step explained fully...

This is the 9th game play session at Sudoku third level of hardness. In this game every step in the beginning was hard-going and finding the breakthrough was not easy. We needed to use a new technique for the breakthrough. But when we now know and have used this pattern, we won't forget it in a hurry. In fact we are incorporating this new technique as a routine step in our overall strategy of Sudoku game solving...

This is the 7th game play session at Sudoku third level of hardness. This game proceeded uninterrupted forming multiple cycles in a row or column and after using the benefits of the cycles reverting back to the basic row column scan. As such no single action in the game could be identified as the game changing turning point action...

This is the 5th game play session at Sudoku third level of hardness. We found this game not particularly difficult, perhaps because we have become used to this level of hard games, but we have learned how to use the construct of a digit appearing in two cells of a 9 square region as a hidden cycle restricting its appearance elsewhere in the particular row...