MESON Chess Problem Database
Problem Display
PID: 235764 (1Bb5/1pnp2pN/3Q4/5k2/5p2/3N1n1P/4R3/K7 w - - 0 1)
Shire, David J
The Problemist Supplement, 2020
#2
7 + 8
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Re5#
- 1...Sg1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...g5
- 2.Qf6#
- 1...g6
- 2.Qxf4#
- 2.Qf8#
- 2.Qf6#
- 1...Se1
- Tries
- 1.Sc1?
- threat
- 2.Qd3#
- 1...Se1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Sd5!
- threat
- 1.Se1?
- threat
- 2.Qd3#
- 1...Sxe1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Sd5!
- threat
- 1.Sb2?
- threat
- 2.Qd3#
- 1...Se1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Sd5!
- threat
- 1.Sf2?
- threat
- 2.Qd3#
- 1...Se1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Sd5!
- threat
- 1.Sb4?
- threat
- 2.Qd3#
- 1...Se1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Sd5!
- threat
- 1.Sc5?
- threat
- 2.Qd3#
- 1...Se1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Sd5!
- threat
- 1.Se5?
- threat
- 2.Qg6#
- 1...Sxe5
- 2.Rxe5#
- 1...Se6
- 2.Qd3#
- 1...g6
- 2.Qf6#
- 2.Qxg6#
- 1...Sh4!
- threat
- 1.Sc1?
- Keys
- 1.Sxf4!
- threat
- 2.Qf8#
- 1...Se5
- 2.Qxe5#
- 1...Sd5
- 2.Qg6#
- 1...Sg5
- 2.Qe5#
- 1...Se6
- 2.Qd3#
- 1...Se8
- 2.Qd3#
- 2.Qg6#
- threat
- 1.Sxf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- S(a);N_GUARD::R1(B)
- S(a);N_GUARD::R1(B),XS(a)
- P(g);N_GUARD::QAR1(E)
- Tries
- Try
- S(C);
- Threat
- QAB(E)
- Vars
- S(a);N_GUARD::R1(B)
- S(a);N_GUARD::R1(B),XS(a)
- Refutation
- S(e);
- Try
- S(C);
- Threat
- QAB(E)
- Vars
- S(a);N_GUARD,XS(C)::R1(B)
- S(a);N_GUARD::R1(B)
- S(a);N_GUARD::R1(B),XS(a)
- Refutation
- S(e);
- Try
- S(C);
- Threat
- QAB(E)
- Vars
- S(a);N_GUARD::R1(B)
- S(a);N_GUARD::R1(B),XS(a)
- Refutation
- S(e);
- Try
- S(C);
- Threat
- QAB(E)
- Vars
- S(a);N_GUARD::R1(B)
- S(a);N_GUARD::R1(B),XS(a)
- Refutation
- S(e);
- Try
- S(C);
- Threat
- QAB(E)
- Vars
- S(a);N_GUARD::R1(B)
- S(a);N_GUARD::R1(B),XS(a)
- Refutation
- S(e);
- Try
- S(C);
- Threat
- QAB(E)
- Vars
- S(a);N_GUARD::R1(B)
- S(a);N_GUARD::R1(B),XS(a)
- Refutation
- S(e);
- Try
- S(C);
- Threat
- QAB1(E)
- Vars
- S(a);OGATE,XS(C)::R1(B),XS(a)
- S(e);SBLOCK::QAB(E)
- Refutation
- S(a);
- Try
- Actual
- S(C);XP(b)
- Threat
- QAR(E)
- Vars
- S(a);N_GUARD::QAR1(E),XS(a)
- S(e);::QAB1(E)
- S(a);N_GUARD::QAR1(E)
- S(e);::QAB(E)
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