MESON Chess Problem Database
Problem Display
PID: 152497 (8/6p1/3p2K1/p1pP1NP1/P5kN/1PQ5/4p1p1/2BRRbnn w - - 0 1)
Saunderson, Douglas
1st HM., Chess, 1956
#2
11 + 10
| 56 | The Problemist | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Sf3
- 2.Qxf3#
- 1...Sh3
- 2.Qf3#
- 1...Sf2
- 2.Qg3#
- 1...Sg3
- 2.Qxg3#
- 1...exd1Q
- 2.Re4#
- 1...exd1S
- 2.Re4#
- 1...exd1B
- 2.Re4#
- 1...exd1R
- 2.Re4#
- 1...c4
- 2.Rd4#
- 1...Sf3
- Tries
- 1.Bd2?
- 1...exd1Q
- 2.Re4#
- 1...exd1S
- 2.Re4#
- 1...exd1B
- 2.Re4#
- 1...exd1R
- 2.Re4#
- 1...Sf3
- 2.Qxf3#
- 1...Sg3
- 2.Qxg3#
- 1...Sh3
- 2.Qf3#
- 1...Sf2
- 2.Qg3#
- 1...c4!
- 1...exd1Q
- 1.Ba3?
- 1...exd1Q
- 2.Re4#
- 1...exd1S
- 2.Re4#
- 1...exd1B
- 2.Re4#
- 1...exd1R
- 2.Re4#
- 1...Sf3
- 2.Qxf3#
- 1...Sg3
- 2.Qxg3#
- 1...Sh3
- 2.Qf3#
- 1...Sf2
- 2.Qg3#
- 1...c4
- 2.Rd4#
- 1...Kf4!
- 1...exd1Q
- 1.Rd2?
- 1...Sf3
- 2.Qxf3#
- 1...Sg3
- 2.Qxg3#
- 1...Sh3
- 2.Qf3#
- 1...Sf2
- 2.Qg3#
- 1...c4
- 2.Rd4#
- 1...Kf4!
- 1...Sf3
- 1.Rxe2?
- threat
- 2.Re4#
- 1...Sxe2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sg3
- 2.Qxg3#
- 1...Sh3
- 2.Qf3#
- 1...Sf2
- 2.Qg3#
- 1...Bxe2!
- threat
- 1.Qd3?
- 1...exd1Q
- 2.Re4#
- 1...exd1S
- 2.Re4#
- 1...exd1B
- 2.Re4#
- 1...exd1R
- 2.Re4#
- 1...Sf3
- 2.Qxf3#
- 1...Sg3
- 2.Qxg3#
- 1...Sh3
- 2.Qf3#
- 1...Sf2
- 2.Qg3#
- 1...c4!
- 1...exd1Q
- 1.b4?
- 1...exd1Q
- 2.Re4#
- 1...exd1S
- 2.Re4#
- 1...exd1B
- 2.Re4#
- 1...exd1R
- 2.Re4#
- 1...cxb4
- 2.Rd4#
- 1...Sf3
- 2.Qxf3#
- 1...Sg3
- 2.Qxg3#
- 1...c4
- 2.Rd4#
- 1...Sh3
- 2.Qf3#
- 1...Sf2
- 2.Qg3#
- 1...axb4!
- 1...exd1Q
- 1.Bd2?
- Keys
- 1.Bb2!
- 1...Kf4
- 2.Qc4#
- 1...exd1Q
- 2.Re4#
- 1...exd1S
- 2.Re4#
- 1...exd1B
- 2.Re4#
- 1...exd1R
- 2.Re4#
- 1...Sf3
- 2.Qxf3#
- 1...Sg3
- 2.Qxg3#
- 1...Sh3
- 2.Qf3#
- 1...Sf2
- 2.Qg3#
- 1...c4
- 2.Rd4#
- 1...Kf4
- 1.Bb2!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::QAB1(E),XS(b)
- S(b);N_GUARD::QAB1(E)
- S(c);N_GUARD::QAR1(E)
- S(c);N_GUARD::QAR1(E),XS(c)
- P(d);OGATE,XR(B)::R(C)
- P(h);N_GUARD::R(B)
- Tries
- Try
- B(A);
- Vars
- P(d);OGATE,XR(B)::R(C)
- S(b);N_GUARD::QAB1(E),XS(b)
- S(c);N_GUARD::QAR1(E),XS(c)
- S(b);N_GUARD::QAB1(E)
- S(c);N_GUARD::QAR1(E)
- Refutation
- P(h);
- Try
- B(A);
- Vars
- P(d);OGATE,XR(B)::R(C)
- S(b);N_GUARD::QAB1(E),XS(b)
- S(c);N_GUARD::QAR1(E),XS(c)
- S(b);N_GUARD::QAB1(E)
- S(c);N_GUARD::QAR1(E)
- P(h);N_GUARD::R(B)
- Refutation
- K(f);P-FLIGHT
- Try
- R(B);
- Vars
- S(b);N_GUARD::QAB1(E),XS(b)
- S(c);N_GUARD::QAR1(E),XS(c)
- S(b);N_GUARD::QAB1(E)
- S(c);N_GUARD::QAR1(E)
- P(h);N_GUARD::R(B)
- Refutation
- K(f);P-FLIGHT
- Try
- R(C);XP(d)
- Threat
- R(C)
- Vars
- S(b);N_GUARD,XR(C)::QAB1(E)
- S(b);N_GUARD::QAB1(E),XS(b)
- S(c);N_GUARD::QAR1(E),XS(c)
- S(b);N_GUARD::QAB1(E)
- S(c);N_GUARD::QAR1(E)
- Refutation
- B(a);XR(C)
- Try
- Q(E);
- Vars
- P(d);OGATE,XR(B)::R(C)
- S(b);N_GUARD::QAB1(E),XS(b)
- S(c);N_GUARD::QAR1(E),XS(c)
- S(b);N_GUARD::QAB1(E)
- S(c);N_GUARD::QAR1(E)
- Refutation
- P(h);
- Try
- P(D);
- Vars
- P(d);OGATE,XR(B)::R(C)
- P(h);N_GUARD,XP(D)::R(B)
- S(b);N_GUARD::QAB1(E),XS(b)
- S(c);N_GUARD::QAR1(E),XS(c)
- P(h);N_GUARD::R(B)
- S(b);N_GUARD::QAB1(E)
- S(c);N_GUARD::QAR1(E)
- Refutation
- P(g);XP(D)
- Try
- Actual
- B(A);
- Vars
- K(f);P-FLIGHT::QAR(E)
- P(d);OGATE,XR(B)::R(C)
- S(b);N_GUARD::QAB1(E),XS(b)
- S(c);N_GUARD::QAR1(E),XS(c)
- S(b);N_GUARD::QAB1(E)
- S(c);N_GUARD::QAR1(E)
- P(h);N_GUARD::R(B)
Developed and maintained by Brian Stephenson.
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