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White to Move© (The Turk's Tactics Thread)

White to Move© (The Turk's Tactics Thread)

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Correct - perhaps somebody else knows who composed this.

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2 edits
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Originally posted by SwissGambit
[fen]4bb2/r7/2np2np/2p5/2N5/1N1p2p1/pp1K4/rk1B4[/fen]
A wild guess:
1. Nba5 [threatening Na3#] Rxa5
2. Ba4 Rxa4
3. Kd1 with
4. Nd2 mate.

edit: the simple way doesn't work due to 3. ... Rxc4.

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Second try: a nice walk on a sunny day

1. Ke1 [making way for Ncd2#] Re7+
2. Kf1 [threatening Na3# now too] g2+
3. Kg1 Re1+
4. Kxg2 Nf4+ [4. ... Nh4+ 5. Kf2 Rf2+ 6. Kf1 Re1+ 7. Kxe1 Nf3+/Ng2+ 8. Kf2 with 9. Na3# is similar]
5. Kf2 Re2+ [5. ... Nh3+ 6. Kxe1]
6. Kf1 Rf2+
7. Kxf2 Nh3+
8. Ke1/Kf1/Kg3/Ke3 with
9. Na3 or Ncd2 mate.

The idea here is correct now, I think, but the execution perhaps slightly erroneous.

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Originally posted by heinzkat
Second try: a nice walk on a sunny day

1. Ke1 [making way for Ncd2#] Re7+
2. Kf1 [threatening Na3# now too] g2+
3. Kg1 Re1+
4. Kxg2 Nf4+ [4. ... Nh4+ 5. Kf2 Rf2+ 6. Kf1 Re1+ 7. Kxe1 Nf3+/Ng2+ 8. Kf2 with 9. Na3# is similar]
5. Kf2 Re2+ [5. ... Nh3+ 6. Kxe1]
6. Kf1 Rf2+
7. Kxf2 Nh3+
8. Ke1/Kf1/Kg3/Ke3 with
9. Na3 or Ncd2 mate.

The idea here is correct now, I think, but the execution perhaps slightly erroneous.
As suspected, there is a faster solution.

1 edit
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Originally posted by SwissGambit
As suspected, there is a faster solution.
swiss can be kind of a jerk can't he?

1 edit
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Originally posted by Adorea
swiss can be kind of a jerk can't he?
Do you have something meaningful to add? Or are you just here for the trolling?

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Originally posted by SwissGambit
As suspected, there is a faster solution.
Probably via 1. Ke3 Re7+ 2. Kxd3 (with threat Na3/Bd2) then, but cannot work it out fully now. But the given solution did work [although not the fastest way to mate], didn't it?

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Originally posted by heinzkat
Probably via 1. Ke3 Re7+ 2. Kxd3 (with threat Na3/Bd2) then, but cannot work it out fully now. But the given solution did work [although not the fastest way to mate], didn't it?
Yes, the 9-move line looked like a sound forced mate to me.

Technically, I don't need to give the stipulation, because the thread asks for the best white move, not the only winning one. However, a composition is better understood with the proper stipulation. The stipulation for this one is Mate in 7.

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White to move

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Originally posted by heinzkat
[fen]2rn1r2/pbq1bpk1/1p1pp2p/3n2pQ/2NP3N/2PB2B1/PP3PPP/R3R1K1[/fen]

White to move
1.Rxe6 looks good. 1...fxe6 loses to 2.Qg6+ and 3.Qh7# so 1...Nxe6 is forced. Then after 2.Nf5+ Kg8 3.Nxh6+ Kg7 4.Nf5+ Kg8 5.Nxe7+ Kg7 6.Qh7+ Kf6, there must be a mate somewhere though I haven't found it yet. Regardless, white can get the exchange back and another pawn and probably more.

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The main point is the Rxe6, after which Black can resign. I don't think there is an immediate mate from there (but I stand corrected)

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Originally posted by heinzkat
[fen]2rn1r2/pbq1bpk1/1p1pp2p/3n2pQ/2NP3N/2PB2B1/PP3PPP/R3R1K1 w[/fen]

White to move
OP clearly asked for the best move, so the Mate in 7 above remains unsolved.

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I know. It'll come.

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Originally posted by SwissGambit
[fen]4bb2/r7/2np2np/2p5/2N5/1N1p2p1/pp1K4/rk1B4[/fen]
One sideline is this:
1. Ke3 Re7+
2. Kxd3 Nf4+
3. Kd2 Re2+
4. Bxe2 with
5. Na3 mate

The main line is this:
1. Ke3 Re7+
2. Kxd3 Nb4+
3. Kd2 Ra7 [defending against Na3, but now the first idea works since Ra4xc4 is not possible]
4. Nba5 Rxa5
5. Ba4 Rxa4
6. Kd1 with
7. Nd2 mate

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