# Just how strong is ChessUp bot level 12 "Stockfish elo: 1500" in actuality? My investigation

**URL:** <https://community.playchessup.com/t/just-how-strong-is-chessup-bot-level-12-stockfish-elo-1500-in-actuality-my-investigation/4029>\
**Category:** ChessUp 2\
**Created:** [December 2, 2025, 10:05pm UTC](https://community.playchessup.com/t/just-how-strong-is-chessup-bot-level-12-stockfish-elo-1500-in-actuality-my-investigation/4029 "2025-12-02T22:05:10Z")\
**Posts on this page:** 1\
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**Author:** ![OmniusReaper556](https://avatars.discourse-cdn.com/v4/letter/o/b77776/32.png) [@OmniusReaper556](https://community.playchessup.com/u/OmniusReaper556)\
**Post date:** [December 3, 2025, 1:17am UTC](https://community.playchessup.com/t/just-how-strong-is-chessup-bot-level-12-stockfish-elo-1500-in-actuality-my-investigation/4029/4 "2025-12-03T01:17:39Z")

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That’ll be on my to-do list but I think it might be a little bit trickier due to the current endgame bug I discovered for bots level 11 and below in which they don’t know how to mate with queen vs lone king, this could cause it to allow its opponent to escape with a draw. I discuss the bug in this thread: [Major endgame flaw with the hardwired ChessUp bots (levels 1 to 11)?](https://community.playchessup.com/t/major-endgame-flaw-with-the-hardwired-chessup-bots-levels-1-to-11/4028)

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