Published <span class="entry-date"><time class="entry-date" datetime="2019-01-29T15:34:22+00:00">January 29, 2019</time></span> at <a href="https://markalowery.net/wp-content/uploads/2019/01/bishop_b33-21.gif">33 × 33</a> in <a href="https://markalowery.net/Chess/Checks_Checkmate/Complex_Checkmates/Problems/cckmp22.html" rel="gallery">White Mates in 4 – Problem 22</a>