https://lichess.org/@/b_6/blogb_6's Blog2026-03-25T22:39:24.533Zhttps://lichess.org/@/b_6/blog/the-10-highest-rated-mate-in-4-puzzles/kpkfS91U2026-03-25T22:39:24.533Z2026-03-25T22:39:24.533ZThe 10 Highest-Rated Mate in 4 Puzzles<img class="ublog-post-image" width="880" height="550" src="https://image.lichess1.org/display?fmt=webp&h=550&op=thumbnail&path=5H8vcaqXrGXC.webp&w=880&sig=83e8d84eb523e588381258a41beed060017459ff" /><br />This post is about the 10 highest-rated Mate in 4 puzzles on lichess. You can solve the puzzles yourself, then read my thoughts about each one and the set as a whole.NM b_6https://lichess.org/@/b_6/blog/calculation-techniques-discovered-checks/YGseVvkb2026-03-10T07:43:00.161Z2026-03-10T07:43:00.161ZCalculation Techniques: Discovered Checks<img class="ublog-post-image" width="880" height="550" src="https://image.lichess1.org/display?fmt=webp&h=550&op=thumbnail&path=fCA-ywRKPzAX.webp&w=880&sig=fed23a9df25782e9bb74802e0c09d49b48b30185" /><br />Discovered checks are a powerful and seemingly simple tactical idea. From looking at students' games, however, I've realized that they can be surprisingly unintuitive, frequently leading to miscalculations and blunders! This post is about a few calculation techniques, tactical patterns, and common mistakes to watch out for when discovered checks are possible.NM b_6https://lichess.org/@/b_6/blog/calculation-techniques-switching-the-move-order/IceHCGvs2026-02-27T23:10:11.528Z2026-02-27T23:10:11.528ZCalculation Techniques: Switching the Move Order<img class="ublog-post-image" width="880" height="550" src="https://image.lichess1.org/display?fmt=webp&h=550&op=thumbnail&path=yIo9OHs8I-HV.webp&w=880&sig=b4576e42e7156ef215781763d0638f55e86c57e8" /><br />This post is about the calculation technique of "switching the move order" when you spot a tactical idea.NM b_6https://lichess.org/@/b_6/blog/calculation-techniques-looking-ahead-one-extra-move/1KUyO11o2026-02-21T23:30:09.141Z2026-02-21T23:30:09.141ZCalculation Techniques: Looking Ahead One "Extra" Move<img class="ublog-post-image" width="880" height="550" src="https://image.lichess1.org/display?fmt=webp&h=550&op=thumbnail&path=fn86ZI5SGWC0.webp&w=880&sig=eef7243bb98493c4bce1471039a377d52b2611b1" /><br />This post is about the calculation technique of looking one "extra" move ahead. This is an essential technique to avoid blundering!NM b_6