White to move and win (difficult) - Alexey Troitsky, 1897
gabbagabbahey, Chest
notaviking, Qf1
wahming, Read other comments
Dsklnsadog, 
I need the reddit bot to try it online.
Bonifratz, My bad, next time I’ll provide a link right away. Here you go: lichess.org/analysis/4B3/8/6N1/…/4K2Q_w_-_-_0_1?c…
Dsklnsadog, Thanks
Aussiemandeus, (edited ) 
- Bc6 Rb1+
- Ke2 Rxh1
3.Bg2+ Kxg2
4.Nf4+ Kg1
5.Ke1 G2
6.Ne2#
Edit K for knight to N
apotheotic, I think it’s meant to be
Ke1 G2as Ne1 is an illegal move but that’s just a notation issue
Aussiemandeus, Yeah it was very late i was meant to be asleep not playing chess puzzles knight starts with a k haha
wahming, It seems to be open ended if black doesn’t take queen, though
Aussiemandeus, 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, What about Rb2, Kd3, Pg2?
Aussiemandeus, It gets all very messy if black doesn’t take the bate it seems
Bonifratz, 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).
Aussiemandeus, What’s interesting is if black moves to Rf4 and ignores the queen i see how it gets very open ended
Aussiemandeus, It appears I’m an idiot too
I’m very new to chess annotation and i keep using k for knight and king.
Bonifratz, 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, What happens if black declines the queen? Too lazy to calculate it out at this point
Aussiemandeus, Anything it seems. But I’m probably missing a lot
Bytemeister, deleted_by_author
Aussiemandeus, Meant to be Ke1
I fucked up the Knight and King it was 11 at night when i was doing it
Bytemeister, Greek 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.
Taako_Tuesday, 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
wahming, (edited ) Does it involve Ke2, Pg2, Qe1? Ending with Qc1, Qh6
Edit nvm I’m dumb
Bonifratz, 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.
rustyfish, (edited ) 
Queen H1 to F1?
Edit: I’m still an idiot.
wahming, (edited ) Pg2
Edit: Apparently I’m being downvoted by somebody who doesn’t understand white starts on row 1
dreadgoat, 
Qd3 Pg3 Qf5
wahming, Qd3 Bg3 I think, followed by promotion
dreadgoat, 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, Bg3 is a check, followed by black promoting their pawn to queen
dreadgoat, Oops, you're right. I went kingblind
jafea7, That’s what I would have thought, leaves the King nowhere to go and there’s nothing to block/capture the Queen.
wahming, Black is moving down, Pg2
jafea7, Doh! My bad, 40+ years since I played.
I’ll shut up now 🤐
Bytemeister, Greek Pawn to G2?
Aussiemandeus, King E1 to F1
Aussiemandeus, No that’s no good either, then castle comes to check
Aussiemandeus, Hang on im still onto it.
New plan
Bc6
Rb1 checking king
Kd2
Rb2 checking King
Kc1
Rook must leave or be taken. Anywhere doesnt matter.
Qg2 checkmate
Bonifratz, Right, but what about 1. Bc6 Rb1+ 2. Kd2 Rxh1?
Aussiemandeus, Shit. Leave it with me
Squareeyed, Bc6, Rb1, Ke2, RxH1, BxH1, Pg2, Nf4, Kg3/h4, Nxg2. That’s as far as I’ve gotten
wahming, Once white loses their queen, a mate is impossible
Aussiemandeus, Nah thats not true
wahming, Given black still has pieces, in this case it probably is
Aussiemandeus, Nah i think you have to lose the queen to win
wahming, Yeah looks like Squareeyed found it
Squareeyed, Got a modification on it. I think it works…
Bc6, Rb1, Ke2, Rxh1, Bg2+,Kxg2,Nf4+,Kg1,Ke1,Pg2,Ke2#
? I dunno if my logic is right, but pretty sure that might be it, been fiddling moves for a while…
Aussiemandeus, Yeah that’s the same answer i got.
I think that’s the best way. But I’m by no means an expert
Squareeyed, I did variations where the room doesn’t take the queen, you just attack the rook with the king
Squareeyed, The two key moves are Bc3 & Ke2
wahming, Tell me what you think of the sequence starting Ke2, Pg2, Qe1
Squareeyed, I tried that but ultimately you lose the queen and can’t stop the pawn queening. The following most likely would be Re4+, then if you move f2 it’s check, f4 you loss your queen and black queens
wahming, Doh I’m an idiot, missed Re4 somehow
wahming, Nice, I think you have it. I assume your last notation means Knight, not King
Aussiemandeus, I’ve been making the same mistake haha
Squareeyed, Sorry last one should be Ne2#
Aussiemandeus, (edited )
- Bc6 Rb1+
- Ke2 Rxh1
3.Bg2+ Kxg2
4.NF4+ Kg1
5.Ne1 G2
Hows that
6.Ne2#
Edit K for knight to N
fosforus, After which horsie nom noms castle, checks king and black is generally speaking fucked. But that doesn’t seem as neat as what they’re looking for here.
wahming, How does horse take castle? Castle is on b1, free queen
fosforus, Oh lol oops. I thought you meant rook to f4 :)
Yeah I’m not amazing at chess.
wahming, Nvm, turns out that free queen is actually the bait for a checkmate
sepiroth154, deleted_by_author
Aussiemandeus, What about the Queen?
SnokenKeekaGuard, 
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, 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,
- Bc6 Rb1+
- Ke2 Rxh1
- Bg2+ Kxg2
- Nf4+ Kg1
- Ke1 g2
- Ne2
wahming, Does it work if black declines to take the queen?
Bonifratz, Perfect, you found it!
SnokenKeekaGuard, No way!
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