game 1651322 Shalev-Maciej

Shalev, I thought move 37 was brilliant, I missed it and it looks to me like the winning move that perhaps Maciej missed too.  At any rate he went into vacation time over it. :)

http://www.trmph.com/hex/board#13,e13e13d5d3c3c4e3e2d10f2g3i2h1e9j9j11l11k12l12j10l8l10e7d12c12d11c11e4f5g4f4f6e6e8e10h7g8g7f7f8j6j5l4j4l3i10

does this solve the doubts?

So how does he respond to 43. i6 rather than l4 ?

http://www.trmph.com/hex/board#13,e13e13d5d3c3c4e3e2d10f2g3i2h1e9j9j11l11k12l12j10l8l10e7d12c12d11c11e4f5g4f4f6e6e8e10h7g8g7f7f8j6j5i6h5g6h6i5j3k3j4l4i10i9k6l7l5k5h8i8g10h10g12

Very nice Daniel, I missed 60. h8

What I'm wondering is whether I have a winning move on turn 37 or not. Originally, I thought I was doing well after move 35, but I'm not sure anymore. What do you think?

Without any deeper analysis I would say that blue are ahead on 35 (a move which I consider far from perfect). I would go further backwards, because a line that I expected was like this:  http://www.trmph.com/hex/board#13,e13e13d5d3c3c4e3e2d10f2g3i2h1e9j9j11l11k12l12j10l8l10e7d12c12d11c11e4d9e8d8f5h6

How about 41. k6 rather than j6?

Arek, I also didn't like 29. f5 but I thought f7 was a stronger move rather than d9

I thought move 35. e10 was pretty good - I still think that move probably wins, and that any other move on turn 35 probably loses. I'm less confident in move 29 - your suggestions are interesting.

So if 35.e10 is winning, what is your improvement?

I think just 37. j6 has a decent chance of winning there (I'm not 100% sure though). How do you beat 37. j6? link to trmph

How about 38.g9

Bill: 39. i8 seems fine, for example this

http://www.trmph.com/hex/board#13,e13e13d5d3c3c4e3e2d10f2g3i2h1e9j9j11l11k12l12j10l8l10e7d12c12d11c11e4f5g4f4f6e6e8e10h7j6g10

shalev, play on with black :)

don't play the easy way! ;)

http://www.trmph.com/hex/board#13,e13e13d5d3c3c4e3e2d10f2g3i2h1e9j9j11l11k12l12j10l8l10e7d12c12d11c11e4f5g4f4f6e6e8e10h7j6g10i10j7k6k8i7i8f9g8f8f7g7h5h6i5k4i6h8g9h9h10i9h12

Arek, why not 39. i8? That seems to win really easily - what am I missing?

true, dunno why I discarded it...

You're right, black win at 37 j6.

if 37. j6 then 38. i8 and in my opinion white wins:

http://www.trmph.com/hex/board#13,e13e13d5d3c3c4e3e2d10f2g3i2h1e9j9j11l11k12l12j10l8l10e7d12c12d11c11e4f5g4f4f6e6e8e10h7j6i8g8f9h9i10h8g7f7f8k7j5l4k5m5l5m4l6m6l7m7k8k9i9

http://www.trmph.com/hex/board#13,e13e13d5d3c3c4e3e2d10f2g3i2h1e9j9j11l11k12l12j10l8l10e7d12c12d11c11e4f5g4f4f6e6e8e10h7j6i8k7i10i9g10f10h10g8g7h8j5l4k5m5l5m4l6m6l7m7k8k9h9

Maciej, have you considered 39. h8? What's your next move? 40. h9 and 40. i7 both seem losing to me.

@shalev: Maciej is right, after 40 i7 comes

http://www.trmph.com/hex/board#13,e13e13d5d3c3c4e3e2d10f2g3i2h1e9j9j11l11k12l12j10l8l10e7d12c12d11c11e4f5g4f4f6e6e8e10h7j6i8h8i7k7i10i9g10h9g9

then my proposition is reasonable again:

http://www.trmph.com/hex/board#13,e13e13d5d3c3c4e3e2d10f2g3i2h1e9j9j11l11k12l12j10l8l10e7d12c12d11c11e4d9f5h6

Wow

Arek, I still think I win, try this line

Shalev, you're right 40. h9 and 40. i7 are both bad tries. What about 40.i10?

http://www.trmph.com/hex/board#13,e13e13d5d3c3c4e3e2d10f2g3i2h1e9j9j11l11k12l12j10l8l10e7d12c12d11c11e4f5g4f4f6e6e8e10h7j6i8h8i10i9g10f10h10g8g7k7j5l4k5m5l5m4l6m6l7m7k8k9h9

http://www.trmph.com/hex/board#13,e13e13d5d3c3c4e3e2d10f2g3i2h1e9j9j11l11k12l12j10l8l10e7d12c12d11c11e4f5g4f4f6e6e8e10h7j6i8h8i10g8g7f7f8k7j5i6h5i5j3k3j4l4k5m5l5m4l6m6l7m7k8k9i9i7j8

http://www.trmph.com/hex/board#13,e13e13d5d3c3c4e3e2d10f2g3i2h1e9j9j11l11k12l12j10l8l10e7d12c12d11c11e4f5g4f4f6e6e8e10h7j6i8h8i10h9g7f7f9k7j5l4k5m5l5m4l6m6l7m7k8k9i9

Try this. The idea is that if the i8 piece is connected to the h7 piece instead of the j10 group, black wins. But if the i8 piece connects to the j10 group instead of the h7 piece, white wins. So black needs to prevent that connection at all costs - hence 47.h9 in this line.

Heh, interesting, that seemed to me a simple position and I keep getting it wrong :) That is a good sympthon though, that on top level we still make plenty of errors, so there is much room to improve :)

yep, my bad ;-) anyway i wanted to resign after your 37.g8 ...

or maybe this

http://www.trmph.com/hex/board#13,e13e13d5d3c3c4e3e2d10f2g3i2h1e9j9j11l11k12l12j10l8l10e7d12c12d11c11e4f5g4f4f6e6e8e10h7j6i8h8i10i9g10f10h10g8g7h9j5i6k6i7h5i5j3i4h3j2i3k3j4l4k5

never mind

http://www.trmph.com/hex/board#13,e13e13d5d3c3c4e3e2d10f2g3i2h1e9j9j11l11k12l12j10l8l10e7d12c12d11c11e4f5g4f4f6e6e8e10h7j6i8h8i10i9g10f10h10g8g7h9j5i6k6l7