Kubbel 1911, presented by Andreas
White to move. How should White proceed?
8/2Bq1p2/2p1b3/8/3k4/5Q2/4P3/2K5 w – – 0 4
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wow this is tricky..
Qd3 Kc5
Bd6 Qd6
Qa3 Kd5
e4 Ke5
Qg3 and white wins the queen
but..
Qd3 Kc5
Bd6 Kb6
And I don’t know how to continue as white.
Great idea, but switch move order:
1. Bd6 Qxd6
2. Qd3+ Kc5
3. Qa3+ Kd5
4. e4+ Ke5
5. Qg3+
or
2. – Ke5
3. Qg3+ Kd5
4. e4+ Kc5
5. Qa3+
A very pleasing symmetry!
There are more lines:
1.Bd6 Bf5
2.Qf4+ Kd5
3.Qe5+ Kc4
4.Qc5+ Kb3
5.Qb4+ Ka2
6.Qa3#
2. .. Be4
3.Qd2+ Kc4
4.Qb4+ Kd5
5.Qc5+ Ke6
6.Qe5#
1.Bd6 Bc4
2.Qf4+ Kc3 (2. .. Kd4 3.Qe5#)
3.Qd2+ Kb3
4.Qb4+ Ka2
5.Qa3#
nice one!
Tobe
well done, Tobe!
Kamalakanta
Explained without words. Very nice for those conversant in algebraic notation. It is rather like having someone who can add, subtract, multiply and divide, and expect them to understand, grasp and solve linear algebra problems just by reading the book. But, we will bring alot more new chessplayers to the table by explaining the strategic and tactical concepts.
Before doing anything we must ask ourselves: WHAT IS THE THREAT? The obvious threat is that Black is going to capture our White Bishop on c7. Do we have to defend it? In the position will something worse happen to Black if he captures White’s Bishop? After looking at the position we can figure out after calculating just a few moves that after Black captures White’s Bishop, White will have no compensation and be in a losing position. White will be down a piece.
So we have to think do we defend the bishop DIRECTLY or INDIRECTLY?
Defending the Bishop DIRECTLY requires that we move the bishop away from the queen or defend the Bishop with the White Queen, by moving for example Qf4+. This move would seem to be good because it attacks and defends at the same time and temporarily retains the INITIATIVE(like in football we have the ball, we are running downs to get to a touch down, but our intiative would be taken away if the other team intercepts a pass, now it is they who are running downs to get a touch down)
Unfortunately the variations after Qf4+ more than likely lead to(an interception) Black getting counterplay and converting by a series of exchanges to a winning endgame for him (White K vs. Black K+P(either bishop pawn c6 or f7)
This position is a perfect example why we must do our tactical problem exercises in our book everyday. Those that practice everyday will almost immediately see that the Black King is dangerously exposed to repeated checks(a forcing move that must be answered in one of 3 ways–1capture the checking piece,2interpose by placing one of your pieces on an empty square between the King and the checking piece, and 3. capture the checking piece) with Queens still on the board. In the present position the Black King has only the choice of moving his King when he is checked by the White Queen.
More importantly you will notice the Black King is on the same file(d file) as the Black Queen. That is the first clue that the tactical manouver called a PIN has a chance of working. Let’s say that in the position Black’s Queen is on d8 and White’s Bishop is off the board. Now when White delivers check by Qd3+, Black’s King is PINNED. If it moves off of the d file to say Ke5 or Kc5 then that leaves White free to capture Black’s undefended Queen on d8 and White wins the game. In addition there is the same pin motif along the diagonals(a3-f8, and h2-b8)
So now we have a plan to work on to win or draw this slightly losing position. Remember we are a pawn down. The next thing is getting the Black Queen to a square where it is not defended. Now you would think, alright, move Bd8, and then Black captures Qxd8 and Qd3+ wins. But Black is not forced to capture the White B on d8. The tactial PIN move is too obvious for an experienced player. Black will make some other move that furthers his plans to win. But Bd6 forces Black to capture Qxd6 because White is threatening CHECKMATE with Qd3+
Ok, so now we see that 2 of the squares that the Black King must move to in order to defend the Black Queen and move out of check from the White Queen at the same time are occupied by Black’s pieces (c6 is occupied by a Black pawn, and e6 is occupied by the Black Bishop. This leaves him with c5, d5 ,
and e5 to go to after a check from
the White Queen and still defend the Black Queen that is exposed to attack from the White Queen along the 2 diagonals (a3-f8, and h2-b8)and the d file (d1-d8)
The final step is to take away the c5 square with our White pawn at e2
by moving e2-e4+(short version e4+)
Now we put all the moves to gether in the right sequence (move order)
1. Bd6 Qxd6
2. Qd3+ Kc5
3. Qa3+ Kd5
4. e4+ Ke5
5. Qg3+ and then
5. … Kxe4 or
5. … Kf6 or
5. … Kd4
6. Qxd6 white has just captured the Black Queen and wins.
Not the most rigorous descriptive analysis, but enlightening, I hope, to many that want desparately and passionately to see the light.
The rest is very succinctly and thoroughly analyzed by anonymous.
Correction to the sentence:
The final step is to take away the c5 square with our White pawn at e2by moving e2-e4+(short version e4+)
Corected version:
The final step is to take away the d5 square with our White pawn at e2by moving e2-e4+(short version e4+)