Easy ladder problem
![[Diagram]](../../diagrams/0/13229bee979ae80afde91b06eb4b618f.png)
Since the ladder did not work for black, he played at a instead to connect.
Difficult ladder problem
![[Diagram]](../../diagrams/39/f6790fe50b4aa5726a9d5248d3c9ac32.png)
Can B capture the marked stones?
![[Diagram]](../../diagrams/11/fdb43d773eee41cd0bde0503446498c1.png)
(continued)
Here, black a would be a mistake (white plays b and black cannot put white into atari again). Also, do not play
at
to avoid selfatari ;)
![[Diagram]](../../diagrams/22/b95b959c9425a96b253a51a25227b98a.png)
White is captured successfully.
Easy tsumego
![[Diagram]](../../diagrams/41/416741ac3f1371e9aa8cda6446dc4c74.png)
White's strongest move
does not work.
Too easy tsumego
![[Diagram]](../../diagrams/40/1b0654672d94ee5d88e146654e19c3a8.png)
This leads to seki. Not optimal.
Funny problem
![[Diagram]](../../diagrams/35/3dbbd7ea498c73b9135e819e859355a6.png)
Black undos his move to a and plays
instead.