---
title: A Native QCDCL Solver vs DepQBF: From 0 vs 4 to a 15–15 Tie, Then 15 vs 18 on Fresh Instances | SpinForge
url: https://spin-forge.com/proof/s04
description: 15 vs 18: solved, fresh 100 instances, ours vs DepQBF. Measured on QBFEVAL'22 With Zero Disagreements.
---

GARMO SOLVERS · S04

# A Native QCDCL Solver vs DepQBF: From 0 vs 4 to a 15–15 Tie, Then 15 vs 18 on Fresh Instances

Measured on QBFEVAL'22 With Zero Disagreements.

15 vs 18 solved, fresh 100 instances, ours vs DepQBF

0 verdict disagreements in every run

26/36 dev set after tuning (was 20)

3 Organic-Synthesis instances only we solve

- 100-instance set: 15 vs 15 (3 unique each)
- Held-out: 12 vs 16; fresh 100: 15 vs 18: LOSS
- Every DepQBF-only solve is a Hex game: the TRUE side needs short learned cubes
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[All results, charts and papers](https://spin-forge.com/proof)

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