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I guess I can assume that b7 isn’t the “brilliant tactic” since it is too obvious, but let’s look at it anyway since it is the first thing I see:
1. b7 Bd6 (what else?)
2. b8(Q)Bb8
3. Rb8 d2
4. Rb2 Ke3, and I don’t think white can win this, I am not even sure he won’t lose in this line. One alternative line is at move 2 for white where he takes at d5 first, and then brings the king to guard d1/d2:
1. b7 Bd6
2. Rd5 Kd5
3. Kg1
This puts black to a decision- how to guard b8 and keep white under control? My preference would be to play Bc7 or Bb8 here since a move like Kc6 should lose to Ra6+:
3. …..Bb8
4. Ra3 Kc6
5. Rd3 f5
Risky to take at b7 since Rd7+ gives white a lot of play. The goal should be to liquidate the white g-pawn:
6. Rb3
I can’t see how 6.gf5 ef5 7.Rb3 f4 is better for white. Continuing:
6. …..fg4
7. Kf2 g3
And I just don’t see how white can win this. I don’t think he is in danger of losing in this line, but a wins seems quite improbable to me.
So, how can he do better at move 1? The most obvious alternative is to give back the exchange, but then what? That is the truly brilliant part, and it took me several minutes of looking at the position after 1.Rc5 Rc5 to understand that 2.b7 wins:
1. Rc5! Rc5
2. b7! Rb5
3. Ra5!!
Pins the rook and forces black to take at a5 allowing the pawn to queen:
3. …..Ra5
4. b8Q
With check, and I can now see that this will cost black his rook, too, since the black king and rook are uncoordinated, and white can easily get a double attack. If black plays the king to the 4th rank, Qb4 wins the rook, and if he plays Kf6 or Kd5, Qd8 wins the rook. Black can resign.
Nice one!
1.Rxc5 Rxc5 2.b7 Rb5 3.Ra5! Rxa5 4.b8=D+ Ke4 5.Db4+
White’s 3rd move is elegant.
1. Rxc5 Rxc5 2. b7 Rb5 3. Ra5 Rxa5
(3. .. d2 4. Rxb5+ Kd4 5. Rb1)
(3. .. Kd4 4. Rxb5 d2 5. Rb1)
4. b8=Q+ Kd4
(4. .. Ke4 5. Qb4+ Ke3 6. Qe1+ Kd4 7. Qxa5 f5 8. gxf5 exf5 9. Qxf5 Kc3 10. Qxg5 Kc2 11. Qd5 d2 12. Qc4+ Kb2 13. Qd3 Kc1 14. Qc3+ Kd1 15. Kg2 Ke1 16. Kf3 Kd1 17. Qc4 Ke1
18. Qe2#)
5. Qb4+ Ke3 6. Qe1+ Kf3 7. Qxa5 Ke2 8. Kg2 d2 9. Qb5+ Ke3
(9. .. Ke1 10. Qf1#)
10. Qb3+ Ke2
(10. .. Kd4 11. Qc2)
11. Qf3+ Ke1 12. Qf1#
Lucymarie Ruth
1.Rxc5 Rxc5 2.b7 Rb5 3.Ra5 Rxa5
4.b8=Q+ Kf6 5.Qd8+ Kg6 6.Qxa5 Kf6
And the rest is pretty easy for white After you bring the King into the center for the endgame and the rest is history. Gordon .B
1.Rxc5 Rxc5
2.b7 Rb5
3.Ra5 Rxa5
4.b8:Q +
4…Ke4-d4 5.Qb4+ and Qxa5
4…Kf6-d6-d5 5.Qd8+
1. b7
if 1….d2 then Rxc5 pinning Rd5
and W queens with check
if 1….Bd6 then b8(Q) 2. Bxb8
3. Rxb8 d2 4. Rd1
1. Rxc5! Rxc5
2. b7 Rb5
3. Ra5! Rxa5
4. b8-Q+
Initial problem:
If white spends his b-pawn to gain bishop, then black can after spend his d-pawn (supported by king) to gain back a rook, then black is simply up 2 pawns, winning. I found no way to remedy this, before I saw:
Get rid of that bishop first to queen b-pawn safely!
1. Rxc5! Rxc5
2. b7 Rb5
3. Ra5! Rxa5 (enforced)
4. b8=Q+
and now the funny question, where for black to put his king?
4. … Kd6/Kd5/Kf6
5. Qd8+ …
6. Qxa5
4. … Kd4/Ke4/Kf4
5. Qb4+ …
6. Qxa5
1 – 0
1. bxc5, dxb5
2. b7, Rb5
3. Ra5, Rxa5
4. b8 (Queen)
I want to point out that getting queen is probably not alone enough to win this.
Absolutely necessary seems to win black’s rook as well.
Otherwise black has too strong counterplay here.