All next 3 puzzles are Sohei-1 arrangements with 4 sudoku's and 1 box overlap.

2 are Asterisk and 2 are SudokuX, all the same, symmetric.

For the Paper & Pencil Solvers, Only Naked/Hidden Pairs/Triples; SER=4.0

- Code: Select all
`#4//H4,A/B16,X/N16,X/H28,A`

.8.3.1.9...3...6..4.6.5.1.3...8.9...2.......1....1.......1.4................9....

.........5.............5.....62...8....91......43...5......3...4.................

.................1...5......3...18......86....6...27.....9.............6.........

....1................7.5.......6....6.......4...5.1...7.2.4.9.5..9...8...6.2.3.4.

Testing my X-, XY- and AIC-chains; SER < 8

- Code: Select all
`#4//H4,A/B16,X/N16,X/H28,A`

..52.67..9..4.7..3..........4.5.3.8..2.....1.....8........4................8.9...

..3.26......7..........3.............3....2.1..............5......8.......7.91...

...13.5.......7......8..............4.8....2.............4..........6......39.4..

...8.1................9........7.....9.....3..5.3.8.6..........6..2.7..1..24.35..

Diabolic, Testing My Forced Chains/Nets; SER > 8

- Code: Select all
`#4//H4,A/B16,X/N16,X/H28,A`

.7.....2...56.79...2.948.7.....1.............36.8.2.51...........................

..........8..4.........7...917.8........14...846.5.........5....3..2.............

.............5..7....9.........1.759...58........3.186...3.........2..9..........

...........................27.5.6.34.............2.....2.793.4...82.43...3.....1.