04 Mar 07
Originally posted by wittywonkaThat one is interesting too, maybe more difficult if you don't know the pattern. The one I posted is just kind of strange since it so easy to miss that c8Q draws.
The more difficult and probably more likely endgame would be pawn vs. queen as such:
[fen]8/3KP3/8/8/8/8/8/qk6[/fen]
Black to move and win...
04 Mar 07
Originally posted by SpacetimeEveryone should learn these basic techniques. And be able to explain that when you shift the pawn (and the white king legally protecting it) to the right or left, it is a draw with the pawn on a7, c7, f7 and h7 and won for black on the other squares.
That one is interesting too, maybe more difficult if you don't know the pattern. The one I posted is just kind of strange since it so easy to miss that c8Q draws.
Also note that there is no single winning move for black to start with here. Any of the three checks (Qa7, Qa4, Qd4) as well a queen move pinning the pawn (Qg7) is equally good.
04 Mar 07
For the following position, play should go as following (for those who don't know):
1. ... Qd4+
2. Ke8 Kc2
Black should try to move the king towards the pawn every chance he gets (i.e. whenever white can't promote)
3. Kf7 Qd7 (pinning the pawn)
4. Kf8 Qf5+
5. Ke8 Kd3 (again, advancing)
6. Kd8 Qd5+
White may try:
7. Kc8 Qe6+
8. Kd8 Qd6+
But this leads back to:
9. Ke8 Ke4
10. Kf8? Ke5 (the pawn is still pinned)
11. Kf7 Qf6+
12. Ke8 Ke6 (the pawn still can't promote)
13. Kd8 Qxe7+ (finally)
14. Kc8 Qa7
15. Kd8 Qd7#
04 Mar 07
2 edits
Originally posted by SpacetimeIt's the end of a famous puzzle. The beginning (I think) is this:
Yes, that's the right answer. I thought this was pretty interesting.
White wins
1.c7 Rd6+ 2.Kb5! Not 2.Kc5?? Rc1! and the new Queen gets skewered. Same goes for 2.Kb7?? Rd7 and ...RxP. 2...Rd5+ 3.Kb4 Rd4+ 4.Kb3 Rd3+ 5.Kc2! No more skewer. 5...Rd4! And now our familiar stalemate trap. 6.c8R!! Ra4 7.Kb3 and wins.