c/chess · by Bonifratz@feddit.de · 2y

White to move and win (difficult) - Alexey Troitsky, 1897

49 points · 64 comments · view on lemmy.world

64 Comments

rustyfish@lemmy.world · 8 pts · 2y (10 replies)

Queen H1 to F1?

Edit: I’m still an idiot.

wahming@monyet.cc · 5 pts · 2y (5 replies)

Pg2

Edit: Apparently I'm being downvoted by somebody who doesn't understand white starts on row 1

dreadgoat@kbin.social · 3 pts · 2y (4 replies)

Qd3 Pg3 Qf5

wahming@monyet.cc · 2 pts · 2y (3 replies)

Qd3 Bg3 I think, followed by promotion

dreadgoat@kbin.social · 1 pts · 2y (2 replies)

I think the definitive solution was already found further down the thread, but I think this could still work
Qd3 Bg3 Nf4 Kh4 ... at that point it becomes a sloppy chase but White takes an indomitable lead, taking B and a pawn easily

wahming@monyet.cc · 1 pts · 2y (1 reply)

Bg3 is a check, followed by black promoting their pawn to queen

dreadgoat@kbin.social · 1 pts · 2y

Oops, you're right. I went kingblind

jafea7@lemmy.world · 3 pts · 2y (3 replies)

That's what I would have thought, leaves the King nowhere to go and there's nothing to block/capture the Queen.

wahming@monyet.cc · 4 pts · 2y (1 reply)

Black is moving down, Pg2

jafea7@lemmy.world · 4 pts · 2y

Doh! My bad, 40+ years since I played.

I'll shut up now 🤐

Bytemeister@lemmy.world · 3 pts · 2y

Pawn to G2?

SnokenKeekaGuard@lemmy.dbzer0.com · 5 pts · 2y (5 replies)

Bc6 Rb2 Trying to mate on g2 and defending.

I'm not sure where to go from there, either bg2+ or nf4+

Either case I can't find a forced mate in my head atleast

Bonifratz@feddit.de · 5 pts · 2y (4 replies)

Good start. You don't have to calculate all the way to mate in that line, White gets an overwhelming advantage.

But more interestingly: What do you do after Bc6 Rb1+?

SnokenKeekaGuard@lemmy.dbzer0.com · 3 pts · 2y (3 replies)

Bc6 Rb1+
Ke2 Rxh1
Bg2+ Kxg2
Nf4+ Kg1
Ke1 g2
Ne2

Bonifratz@feddit.de · 3 pts · 2y (1 reply)

Perfect, you found it!

SnokenKeekaGuard@lemmy.dbzer0.com · 1 pts · 2y

No way!

wahming@monyet.cc · 2 pts · 2y

Does it work if black declines to take the queen?

Aussiemandeus@aussie.zone · 3 pts · 2y (15 replies)

Bc6 Rb1+
Ke2 Rxh1

3.Bg2+ Kxg2

4.Nf4+ Kg1

5.Ke1 G2

6.Ne2#

Edit K for knight to N

Aussiemandeus@aussie.zone · 3 pts · 2y

It appears I'm an idiot too

I'm very new to chess annotation and i keep using k for knight and king.

Bonifratz@feddit.de · 2 pts · 2y (2 replies)

Nicely done! You solved the main (study) line. There's other lines where Black actually holds out longer, but they're much simpler to calculate.

wahming@monyet.cc · 2 pts · 2y (1 reply)

What happens if black declines the queen? Too lazy to calculate it out at this point

Aussiemandeus@aussie.zone · 2 pts · 2y

Anything it seems. But I'm probably missing a lot

wahming@monyet.cc · 2 pts · 2y (6 replies)

It seems to be open ended if black doesn't take queen, though

Aussiemandeus@aussie.zone · 2 pts · 2y (4 replies)

Bishop moves to g2 checkmate of it doesn't check the king.

If it does then the king walks back towards the rook. Until it takes it or the rook doesn't check the king ending the game

wahming@monyet.cc · 2 pts · 2y (2 replies)

What about Rb2, Kd3, Pg2?

Aussiemandeus@aussie.zone · 2 pts · 2y (1 reply)

It gets all very messy if black doesn't take the bate it seems

Bonifratz@feddit.de · 2 pts · 2y

In what position? After 1. Bc6 Rb1+ 2. Ke2 Rb2+ 3. Kd3 Black doesn't have anything but spite checks. And if ...g2, White can now safely go Qc1 with quick checkmate to follow via Qh6+ (since g2 is covered by the bishop).

wahming@monyet.cc · 1 pts · 2y

[ removed ]

Aussiemandeus@aussie.zone · 2 pts · 2y

What's interesting is if black moves to Rf4 and ignores the queen i see how it gets very open ended

Taako_Tuesday@lemmy.ca · 1 pts · 2y

After 4. Nf4+, wouldn't it be better for the king to go to f3? Or am I overlooking something obvious

Edit: answered my own question, white king covers f3 after moving to e2, forgot about that

Bytemeister@lemmy.world · 1 pts · 2y (2 replies)

[ removed ]

Aussiemandeus@aussie.zone · 1 pts · 2y (1 reply)

Meant to be Ke1

I fucked up the Knight and King it was 11 at night when i was doing it

Bytemeister@lemmy.world · 1 pts · 2y

No probs. Looks good. I'm a little wary of solutions that aren't forced, but this seems the most reasonable I've seen so far.

Dsklnsadog@lemmy.dbzer0.com · 3 pts · 2y (2 replies)

I need the reddit bot to try it online.

Bonifratz@feddit.de · 6 pts · 2y (1 reply)

My bad, next time I'll provide a link right away. Here you go: https://lichess.org/analysis/4B3/8/6N1/5p2/1r4p1/6pk/7b/4K2Q_w_-_-_0_1?color=white

Dsklnsadog@lemmy.dbzer0.com · 1 pts · 2y

Thanks

wahming@monyet.cc · 2 pts · 2y (1 reply)

Does it involve Ke2, Pg2, Qe1? Ending with Qc1, Qh6

Edit nvm I'm dumb

Bonifratz@feddit.de · 4 pts · 2y

Unfortunately no. After 1. Ke2 g2 2. Qe1 Black has a simple way to win the queen, and after 2. Qc1 Black can at at the very least promote the pawn and there will never be a checkmate for White.

Aussiemandeus@aussie.zone · 2 pts · 2y (28 replies)

King E1 to F1

Aussiemandeus@aussie.zone · 2 pts · 2y (25 replies)

No that's no good either, then castle comes to check

Aussiemandeus@aussie.zone · 2 pts · 2y (20 replies)

Hang on im still onto it.

New plan

Bc6

Rb1 checking king

Kd2

Rb2 checking King

Kc1