Black to move. How should black proceed?
Source: ChessToday.net
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Olympiad chess tactic
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Black to move. How should black proceed?
Source: ChessToday.net
1……Ng3! is sweet.
1. … Rg2+
2. Kf1 Ng3+
3. Ke1 Rg1+
4. Rf1 Rxf1#
1. … Rg2+
2. Kf1 Ng3+
3. Ke1 Rg1+
4. Rf1 Rxf1#
Other possibility is:
1. … Rg2+
2. Kh1 Rh2+
3. Kg1 Rag2+
4. Kf1 Ng3+
5. Ke1 Rg1+
6. Rf1 Rxf1#
Ng3 plays itself. The main idea is to threaten mate two different ways- by Rg2 if white takes no action, or starting with Ra1 otherwise:
1. …..Ng3
2. Rf2
I don’t see any other move that prevents the mate. If white captures at g3, Ra1 is mate in 2 more moves. Also, interposing the rook or the bishop at d2 won’t work since Ra1 is still going to mate. Finally, Bc3 covering a1 and e1 of course fails to Rg2#. Continuing:
2. …..Rf2 (anything better?)
3. Rg3 Rf4
At first, I thought black could win the bishop with Rfb2, but white can keep his piece by playing Be1. I don’t see anything really better than the capture at f4. In any case, black is up an exchange and a pawn, and white’s position is utterly hopeless.
Ng3! Threatening Rg2# or Rxg3 Ra1+ back-ranking.
-Steven Breckenridge
If 1.Rg2+ Kf1 and 2.Ng3+, there the knight is lost after white’s answer Rxg3 – he is here twice and no mate threat. But: 1. Ng3 is another story! Game Over..
When is GM Polgar’s chess university going to be working again? I would very much like to enroll.
i think Ng3 is a killer move, basically because of the double threat Rg2# and Ra1+. for example, if RxN, then Ra1+ and mate in 2.
greets, jan
1 … Ng3 !
with 2 … Rg2 mate
if
2 Rxg3 Ra1 mate
1…Ng3 (==>Rg2#)
2.Rxg3 Ra1+
3.Rd1 Rxd1+
4.Be1 Rxe1#
You must see killer moves. Here is one:
1…Ng3!!
@Aishu:
1. … Rg2+
2. Kh1 Rh2+
3. Kg1 Rag2+
4. Kf1 Ng3+
5. Rxg3!
1. … Ng3!!
Threats 2 … Rg2#.
Only “defences” are:
A)
2. Rxg3 Ra1+
3. Rd1 Rxd1+
4. Be1 Rdxe1#
B)
2. Bd2/Rd2 Ra1+
3. Rd1 Rxd1+
4. Be1 Rdxe1+
5. Rf1 Rxf1#
C)
2. Rf2 (longest lasting) Rxf2
3. Bd2 Raxd2
4. Rxd2 Rxd2
up with R+N, white has just pawns.
Just 1….Ng3 ain’t it?
If 2.Rxg3 Ra1+ and mate follows.
If 2.Rd1 or Be1 or Rf1 then Rg2#
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Aishu, I don’t understand your line:
… Rg2+
Kf1 Ng3+??
Rxg3 … and the attack is lost, unless I miss something?
I thought of Nf2 threatening the rook followed by Ra1, but it doesn’t work due to Ra2!
What about
… Ng3!
Rxg3 Ra1#
so white has to go with
1. … Ng3!
2. Rf2 Rxf2
3. Rxg3
and black has a winning position.
For example
3. … Rb2
4. Be1 Rb1 with an annoying pin
or even simply
3. … Rxf4
and white has nothing, being down a pawn with a bishop for a rook.
Ng3!
@ Cortex
You are right
I did not see that at the first place
but then after that I saw the move Ng3!!