White to move. How should white proceed?
1R6/8/p7/2B5/k2p2p1/p7/KP2r2p/8 w – – 0 1
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1.) Rb4+ Ka5 2.) Kxa3 Re3+ 3.) b3 Rxb3+ 4.) Kxb3 h1=Q 5.) Bb6#
1.Rb4+ Ka5
2.Kxa3 Re6
[if 2..h1=Q? 3.Bb6#]
3.Rb7 Re3+
[if 3..h1=Q? 4.Bb4#]
4.b3 Rxb3+
5.Rxb3 h1=Q
6.Bb6# ..no sweat! lol
1. Rb4+, Ka5
2. Kxa3, Re3+ (any other move other than this or Re6 loses to Bb6#)
3. b3, Re6 (Rxb3 loses to Rxb3 and Black cannot prevent Bb6 and mate)
4. Rb7 and now Black cannot stop the triple mate threat of Bb6#, Bb4# and b4#
1.Rb4+ Ka5
2.Kxa3 threatening mate on b6 with bishop.
2….Re3+
3.b3 Re6 (the only move that delays the mate)
4.Rb8! now threatening a mate from b4
The only move here for black that prevents mate is giving up the rook on b6. Continuing
4…Rb6!
5.Rxb6 h1Q
6.Rb8! Qe1 (again only move to prevent mate)
7.Bb4+ Qxb4+
8.Rxb4 with an easy win for white.
I am not sure if I missed anything more forceful for white here.
1Rb4+ ka5 2Ka3 re6 3rb7 rb6 4 b4+rxp
5BxR mate
Rb4+ followed after Ka5 by Kxa3 threatening mate with Bb6+ next move.
This is a quickie.
1. Rb4+ Ka5
2. Kxa3
Now black cannot avoid checkmate. Threat is 3. Bb6#. So:
2… Re6
3. Rb8
Threat shifts to 4. Bb4#. Now black is helpless.
3… Rb6
4. Rxb6 h1Q
5. b4#
(Black can delay the checkmate by one move, by playing 2… Re3+ 3. b3 – but the eventual outcome is the same).
1. Rb4+ Ka5
2. Kxa3, threatening Bb6#
2. … Re3+
3. b3 Rxb3
4. Kxb3 h1Q
5. Bb6#
1-Rb4+ Ka5 2-Kxa3 Re6 3-Rb8 Rb6 4-Rxb6 H1(Q) 5- b4 mate . alawadhi
Hi Susan Polgar,
Others had correctly,posted the solution to this puzzle – Good. Nothing to add further.
By
Venky [ India – Chennai ]