There are two good choices to make the black Queen has just moved from d8 to b6
1) the more 'efficient' and does this allow white any opportunity ?
2) an 'easier' choice - one which leads
to an easy and straightforward win
Q what are these two choices ?
Q which would you choose ?
3 4
is white's last move good ?
are there any risks white is taking ?
should black take the Bishop on b5
Notes to page 1
this was a speed game - 10 minutes each, at this stage I had over five minutes left
and my opponent a little over one minute - so I was pretty confident of
not losing on time
although the result should not be in doubt, and black would normally resign,
in speed games the most surprising blunders and turn-arounds happen
- so black played on till the end
1) 1.Be5+ leads to a more efficient use of white's pieces...Kc8 black has to move here, since Ka8 loses a piece
- can you see how ? (answer : Nc7+ forking King and Rook 2.Kb3 b5 3.Qf2 Kd7 4.Qc5 Re6 5.Qc7+ Ke8
6.Qc8+ Kf7 7.Qd7+ Kf8 8.Qg7+ Ke8 9.Bf6 Rxf6 10.Qe7#
although in the game I chose 2) - that almost completely removed black's chances of winning of
fighting back (counter-play)
1.Qxa6 this gets rid of black's two pieces bxa6 2.Kxa3 Kb7 3.Kb4 Kc6 4.g5 the black King cannot make progress,
this also fixes blacks g-pawn, and when the knight-move Nf6 comes - it should win with ease Kd6 black had to
move the Knig somewhere, and ...Kb7 would be met by Ka6 and black runs out of useful moves .Ka5 Kc6
6.Kxa6 Kd6 7.Kxa7 Kc6 8.Nf6 Kb5 9.Bb6 Kc4 10.e5 Kd3 11.e6 Ke2 12.e7 Kf3 13.e8Q h5 14.Qe3+ Kg2
15.Qg1+ Kxh3 16.Bf2 h4 17.Qh1#
actually we never played out the game - a few moves before white was going to Queen a pawn,
black ran out of time - white had 4 minutes; 20 seconds left
the secret to these type of positions is to know that in the position to
the left - white cannot capture the pawn on b5 (without losing that is)
since the a-pawn will Queen easily and the King cannot catch it
the same is true for black of course - the pawn on f5
is quite safe from capture
and since neither King can leave the pawns to help its own pawns
- this position should be agreed drawn
- an adjudicator would judge it a draw
this, however, is completely different
we use the fact that white can only move the King - and so must give way
1.Kc3 Ke5 2.Kb4 Kd4 3.Ka3 Kc3 4.Ka2 b4 5.Kb1 b3 6.Kc1 b2+
7.Kb1 a3 8.Ka2 Kc2 9.Kxa3 b1Q 10.Ka4 Qb6 11.Ka3 Qb3#