White to move. How should white proceed?
Source: ChessToday.net
Chess Daily News from Susan Polgar
Biel tactic
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White to move. How should white proceed?
Source: ChessToday.net
Rc8 wins
Bxd6 looks like the best move. My earlier comment of Rc8 can be countered by black’s perpetual check
1.Bxd6
if 1…Rxd6 2.Rc8+ Rd8 3.Qd7+ kf8 4.Rxd8++
if 1…Qd1+ 2.Rxd1 Rxd6 3.Qb8+ ke7 4.Qxd6+ Kf6 5.Nd5+ kg5 6.Qg3+ kxh5 7.Nf4++
Bxd6 looks pretty conclusive.
Bxd6.
1 Bxd6 !! Rxd6 2 Rc8+ Rd8 3 Rxd8 Kxd8 4 Qd7#
1 Bd6 threatening 2 Qe7# by Tsekmate
I admit, 1.Rc8 hit me first, too, but, if black can still castle….
1. Rc8 Qd1 (or castle)
2. Kh2 O-O and black’s material edge is easily decisive.
I assume that black can castle here, so this immediately led me to
1. Bd6!
Threatens Qe7# and prevents black’s castling out of danger. I don’t see a defense. Best I can see is to take at d6 (minus lines where black gives up the queen at d1, but even those look like mate):
1. …..Rd6
2. Rc8 Rd8
3. Rd8 Kd8
4. Qd7#
1. Rc8 allows a perpetual via 1…Qd1+ and 2…Q:h5+. So we must find something better.
1. B:d6 does the trick – it threatens 2. Qe7#, and 1…Rd7 allows 2. Q:d7#. So Black must play 1…R:d6.
Now 2. Rc8 is check, and 2…Rd8 is the only defense, but then 3. Qd7+ and 4. R or Q:d8#
Bxd6 Rxd6
Rc8+ Rd8
Qd7+ Kf8
Rxd8++
1. Bxd6 (a) Rxd6
2. Rc8+ Rd8
3. Qd7+ Kf8
4. Rxd8#
1. … (b) Rd7
2. Qxd7#
1. … (c) anything else, apart from self-immolation at Qd1+
2. Qe7#
Mark
consider:
1. B x d6 …. threatens Q -e5 mate
and prevents castling
1. …… R x e5
2. R – c8+ R – d8
3. Q – d7+ K – f1
4. R x c8 ++
Rc8, menacing mate in 2 is tempting but Black would get a perpetual check. So I’d play B at h hitting at the black rook, preventing remis, and then proceed with Rc8 plan.
Rc7 wins. Traps black rook. Pls check it out
Who moderates this? Like who determines which comments get approved first?
I imagine Susan is too busy and has an assistant? My comments go through like half the time and I don’t get any errors. Could be the software I suppose. Shrug.
Not upset, just curious.
Also I’m sure it’s Bxd6 Rxd6 Rc8+ 🙂
1Bh4 wins exchange and the game.
Bxd6 wins.
1. Bxd6! threatening Qe7# & preventing Black from castling
if
1. Rxd6
2. Rc8+ Rd8
3. Rxd8+ Kxd8
4. Qd7#
Bxd6 wins
Bxd6 wins
Well, Rc7 encounters the same problem as Rc8 I think, black has time to play 0-0 and escape all threats.
Bh4 is met by f6.
I even looked at Nc8 0-0 Bxd6 Rfe8 Be7 gaining material, but this must be far too passive.
I think it has to be a piece sack to gain tempo:
1. Bxd6! Rxd6 (0-0 wasn’t possible now)
2. Rc8+ Rd8
3. Rxd8+ Kxd8
4. Qd7#
About Bxd6, the first thing I saw in this diagram was “wonderful move if not black had Rxd6…”.
Well, black actually can’t afford to move his Rd8 rook!
1. Bxd6! (threatening a mate on e7)
… Rxd6
2. Rc8+ Rd8
3. Qd7+!
and white should win.
1. Bxd6! Rxd6 Only move because of the threat Qe7#*
2. Rc8+ Rd8
3. Qd7+ Kf8
4. Rxd8#
*Of course Black can sac the queen with 1… Qd1+, but after 2.Rxd1 Rxd6 3. Rxd6 there is no hope as well.
1. Bxd6 Rxd6 2. Rc8+ Rd8 3. Qd7+ Kf8 4. Rxd8#
I thought Rc8 but Yancey Ward is correct, (assuming castling is legal)!
So Bxd6 threatening mate on e7. This forces the black rook off the back rank, e.g Rd7 or Rxd6 when Rc8 is check and Rd8 is met by Qd7 ch, mating.
Isn’t it just the direct approach
1.Bxd6 threatening Qe7# and stopping black castling.
If 1….Rxd6 2.Rc8+ Rd8
3.Qd7+
0-0-0
-0-0-
B x d6
How about Bxd6? Stops black from castling and threatens Qe7#.
1. Bxd6 Rxd6
2. Rc8+ Rd8
3. Qd7+ Kf8
4. Rxd8#
Bxd6 should lead to mate.
Bxd6 wins
Bxd6 wins
1.Bxd6 wins
B:d6 threatning mate in1 so
R:d6 force move to stop mate
Rc8+..Rf8 again force move then
Qd7 checkmate
1.Bxd6 Rxd6
2.Rc8+ Rd8
3.Qd7+
Of course Black can sac the queen with 1… Qd1+, but after 2.Rxd1 Rxd6 3. Rxd6 there is no hope as well.
However, if Black can play 0-0 then, there is no immediate mate. White would be up Q vs R+2P, and with much more active pieces, so it’s still a win.
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