The current rules & ratings (which occasionally) overlap are:

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`1.0: Last value in block, row or column`

1.2: Hidden Single in block

1.5: Hidden Single in row or column

1.7: Direct Pointing

1.9: Direct Claiming

2.0: Direct Hidden Pair

2.3: Naked Single

2.5: Direct Hidden Triplet

2.6: Pointing

2.8: Claiming

3.0, 3.2, 3.4: Naked Pair, X-Wing, Hidden Pair

3.6, 3.8, 4.0: Naked Triplet, Swordfish, Hidden Triplet

4.2, 4.4: XY-Wing, XYZ-Wing

4.5 - 5.0: Unique rectangles and loops

5.0, 5.2, 5.4: Naked Quad, Jellyfish, Hidden Quad

5.6 - 6.0: Bivalue Universal Graves

6.2: Aligned Pair Exclusion

6.5 - 7.5: Bidirectioal X-Cycles and Y-Cycles

6.6 - 7.6: Forcing X-Chains

7.0 - 8.0: Forcing Chains, Bidirectional Cycles

7.5 - 8.5: Nishio

8.0 - 9.0: Cell/Region Forcing Chains

8.5 - 9.5: Dynamic Forcing Chains

9.0 - 10.0: Dynamic Forcing Chains (+)

> 9.5: Nested Forcing Chains

I'll start by 1st suggesting a change towards the lower end of the ratings as follows:

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`1.2: Hidden single (1.5 if not in block)`

1.6: Naked single//2.3 ---> 1.6

1.7: Direct Pointing

1.9: Direct Claiming

2.0: Direct Hidden Pair

2.6: Pointing

2.8: Claiming

2.9: Hidden pair//3.4 ---> 2.9

3.0: Direct Hidden Triplet//2.5 ---> 3.0

3.1, 3.2: Naked pair, X-Wing//3.0 ---> 3.1

3.6, 3.8, 4.0: Naked triplet, Hidden triplet, Swordfish//3.8 ---> 4.0 4.0 ---> 3.8

4.2, 4.4: XY-Wing, XYZ-Wing

4.5 - 5.0: Unique Rectangles and Loops

5.0, 5.2, 5.4: Naked quad, Hidden quad, Jellyfish//5.2 ---> 5.4 5.4 ---> 5.2

5.6 - 6.0: Bivalue Universal Graves

6.2: Aligned Pair Exclusion

6.5 - 7.5: X-Cycles, Y-Cycles

6.6 - 7.6: Forcing X-Chains

7.0 - 8.0: Forcing Chains, XY-Cycles

7.5: Aligned Triplet Exclusion

7.5 - 8.5: Nishio

8.0 - 9.0: Multiple chains

8.5 - 9.5: Dynamic chains

9.0 - 10.0: Dynamic chains (+)

>9.5: Nested Forcing Chains

One thing I was considering is increasing the space between the current ratings through multiplying all the current ratings by 10 … But then: should we allow overlapping as it is happening now or not? The increase in space can allow adding more techniques in the future if needed …

tarek