Tsumego are such an important part of go. But we don’t have a tsumego thread. That’s not right!
The So-called Strength in Go is Actually the Strength of Your Calculation Skill
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Interesting problems. I think you should specify what sort of responses you expect ?
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25 tsumego problems
Source: https://vk.com/wall-105196334_44669 (spoiled solutions)
Demo boards:
How would you rate the difficulty level of these problems?
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What a tough cookie from A. Dinershteyn. White to move.
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Black to move. Could anyone explain the different kos here?
This thread has potential so let’s give it a bump.
https://tsumego-hero.com/
https://senseis.xmp.net/?ProblemsAndExercises
http://britgo.org/bgj/bgj (each edition of the Journal has four tsumego scattered throughout, and the solutions together near the back)
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It seems black to live. But in comment they wrote that black lives on the left and white makes ko on the right.
Not a tsumego but a fun reading practice for kyus.
Can white survive? I’m thinking not.
If it were my move, and I were white, I think I’d hit I5, hope black blocked with H5, then I’d try something into the 3rd line with I3 then L3.
I think my coords are right there.
You never know unless you try 
Although this can turn into a bad thing especially when we get into trolls.
I’ve been meaning to respond for a while but always forgot to.
White lives I think, because black in bottom-right is short on liberties. Many moves work but I think jumping down to the second line is most straightforward.
Also most of the time “I” is skipped in the coordinates (because it symbolizes illuminati eye which is always hidden or something). I usually prefer number-number coords.
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Look at these beautiful tsumego
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I would appreciate advice regarding the following problem:
The book recommends G1, but I think that H1 lives as well. Can I get your opinion?
What if it’s like this?
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After your sequence, E1 ? If E2, E3 and I feel this is seki at worst (capture B2).