1. j10 | h6 | |
2. o15 | d10 | |
3. i15 | k13 | |
4. o16 | o10 | |
5. k16 | m16 | |
6. g10 | k6 | |
7. p11 | | White now places a block at p11 to
keep black from the top left side. This move is sente, that is,
requiring a local answer. |
| p10 | Both players are now in gote,
that is, forced to answer locally, up to and including white 10 at s11. Black 10 is sente. |
8. q11 | q10 | |
9. r11 | r10 | |
10. s11 | q18 | White must cut... |
11. n17 | | ...but he does so in sente. |
| m17 | |
12. g6 | | White leaves the top left side and makes
a block to contain black on the left and bottom left. |
| g11 | |
13. j13 | i12 | Strategies have been more or less laid
out, and now the tactical fight is flaring up in the center.
This is a critical phase... |
14. j12 | i11 | |
15. h9 | l15 | |
16. k14 | l14 | |
17. j11 | l18 | |
18. m12 | | White cannot secure the
top right side at k18 because black, starting at k17, can cut using a ring threat.
As long as the black group is dead, white doesn't mind its access to the right side.
Therefore white plays sente at m12, threatening to kill and connect simultaneously. |
| n13 | |
19. m11 | | Black 18 threatens to connect
to the top left side, with an eye on the four black stones on the diagonal.
White cannot (at this moment) connect m12 to the three top stones so he
plays an anchor at m11.
|
| l12 | |
20. o12 | p14 | White 20 cuts off the four black stones on
the diagonal, pushing the black escape towards the center.
Black goes for the top left side, forcing white to defend the rightmost side. |
21. j17 | k19 | |
22. i18 | k10 | |
23. l9 | j8 | |
24. j9 | k9 | |
25. i8 | m13 | The game is now a race in which players
will employ ring threats (requiring local answers) to make speed. |
26. h7 | e2 | Black judges white to be faster, but doubts
whether he actually has a frame! So he defends the lower left side... |
27. i10 | h8 | |
28. f7 | g8 | |
29. e7 | f9 | |
30. d3 | c1 | |
31. c3 | b1 | |
32. f4 | d5 | Parrying the threat to frame a ring. |
33. g3 | | White secures the side, proving he had a
frame after all.
The question of course is: has black succeeded in actually lengthening white's route?
Please note that black 33 at a2 will actually shorten white's route
because white 34 at b4 requires black to once again parry a ring threat.
|
| m14 | |
34. k12 | n16 | The race is on... |
35. n15 | o17 | |
36. k15 | p17 | |
37. q16 | q19 | |
38. o18 | r18 | |
39. k17 | i14 | |
40. e3 | k8 | |
41. k18 | l19 | k18 is sente: white threatens to
bring in the top right side instead of the bottom left, winning a move. Black defends,
but now white 42 is sente. |
42. j18 | i16 | Black must defend because white can
frame a ring at h16. Since j18 is a necessary connection in white's forkframe,
the move wins a crucial tempo. In retrospect j18 might better have been moved
before k18: black could have taken it for 'just a necessary connection'
and consequently have played sente at l8, towards the four black stones at the top
left corner, that are part of his shortest route. This would have made k18 an
instant win. |
43. f5 | l18 | |
44. e5
 | d4
 | White makes two unnecessary sente moves.
The idea is that d5 becomes a 'ring in 2' threat. It's not a frame however, and d5 is not part
of the fork route. |
45. e6 | g7 | |
46. b3 | m9 | |
47. f3 | m10 | |
48. l10 | n11 |
WHITE RESIGNS.
This is the one white overlooked! We'll play on a few moves to show why he resigns.
Of course defense at n12 is necessary. |
49. n12 | o11 | Here's the crucial tempo! |
50. n9 | r9 | Black connects in 2 and
white is out of threats in 1. |