Lizzieyzy supports very large boards! I tried 1000x1000, it works, saves and loads the sgf! you can connect two katago engines 100x100, matches of two engines
Lizzieyzy https://github.com/yzyray/lizzieyzy/releases
katago 100x100 https://github.com/lightvector/KataGo/i ... -810368706

q5go supports boards up to 52x52, a game of two engines, matches of two engines
q5go https://github.com/bernds/q5Go/releases
katago 52x52 https://github.com/lightvector/KataGo/i ... -913116646
https://drive.google.com/file/d/1VlRD3i ... sp=sharing

GoGui supports boards up to 52x52, a game of two engines, matches of two engines
gogui https://github.com/Remi-Coulom/gogui/releases

KaTrain 1.3.4 playing against the computer on boards up to 52x52, playing the program by itself, katago-bs52 included
https://github.com/sanderland/katrain/r ... tag/v1.3.4

Leela 0.4.6 playing against the computer on boards up to 37x37
https://sjeng.org/dl/setupLeela046.exe

MultiGo supports boards up to 52x52
MultiGo is designed to view/edit Smart-Go format(SGF) go game file. It also supports other popular file format including *.BDX, *.NGF, *.GOS, *.GIB, *.UGF, *.GO. You can easily navigate through the game and branches, add/remove markers and comments, create or edit your own branches. You could use MultiGo to play with GNU Go, or even record/play go video.
multigo http://www.ruijiang.com/multigo/download.php

37x37, b18-s550 - b60-s716 8:2 (both: 10 playouts, chinese, resignThreshold = -0.999)

37x37, b18-s550 - b60-s716 6:4 (both: 100 playouts, chinese, resignThreshold = -0.999)

37x37, b18-s550 - b60-s716 1:1 (both: 500 playouts, chinese, resignThreshold = -0.999)

37x37, b18-s550 - b60-s716 1:1 (both: 1000 visits, chinese, resignThreshold = -0.99)