Square-1 parity
Fix the swap the other steps cannot: 5 cases.
Adj Parity
/ -3,0 / 0,3 / 0,-3 / 0,3 / 2,0 / 0,2 / -2,0 / 4,0 / 0,-2 / 0,2 / -1,4 / 0,-3 / 0,3
27 HTM · 1 alg
Opp Parity
/ 3,3 / -1,0 / 2,-4 / 4,-2 / 0,-2 / -4,2 / 1,-5 / 3,0 / 3,3 / 3,0
26 HTM · 1 alg
O+ Parity
0,-1 / -2,-2 / 2,0 / -3,-3 / 0,1 / -2,-2 / 0,-2 / 2,2 / 0,-1 / 3,3 / 3,3
27 HTM · 1 alg
O- Parity
/ -3,-3 / 0,1 / -2,-2 / 0,2 / 2,2 / 0,-1 / 3,3 / -2,0 / 2,2 / -3,-2
26 HTM · 1 alg
W Parity
0,-1 / 1,-2 / -4,0 / 0,3 / 1,0 / 3,-2 / -4,0 / -4,0 / -2,2 / -1,0 / 0,-3 / -3,0
26 HTM · 1 alg
Source: SpeedCubeDB, https://speedcubedb.com/a/SQ1/SQ1Parity, retrieved 2026-10-24: case names, groups, setups and images, and the top-voted algorithms per case with their votes. Every algorithm shown was checked by the logic engine; rejected ones are listed in docs/db-exclusions.md.