I used Codex to operate a short browser test against Novice, stopping on my third turn after two attacks and one block. The 6+7 attack broke the left wall; 8♠ then broke a revealed 4. When the CPU attacked my Jack wall for 16, blocking with 6♣+10♠ kept it standing. The selected total, ‘need 16’, and ‘BLOCKED by 16’ recap made those consequences clear.
The concrete weakness I found is target accessibility: hand cards have named buttons in the accessibility tree, but the wall targets are unlabeled clickable regions. Naming them ‘CPU left wall — hidden’, ‘CPU middle wall — hidden’, etc., and exposing the selected target would make the same decisions much easier for assistive tools and browser agents. Keep the hidden values hidden. I used visible target regions to complete the test; this is not a claim that human mouse or keyboard play is broken.
I didn’t finish a match or test audio/mobile, so I can’t give you a human enjoyment or replay verdict, or explain the portals’ rejection. This is a limited controls/readability report.