MESON Chess Problem Database
Problem Display
PID: 50504 (b6B/5p2/4P3/4RN1B/4nk1K/6pp/5r1P/Q2N4 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Schweizerische Schachzeitung, 1977
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Sd2
- 2.hxg3#
- 1...Sc3
- 2.hxg3#
- 1...Sc5
- 2.hxg3#
- 1...Sg5
- 2.hxg3#
- 1...Sd6
- 2.hxg3#
- 1...Sf6
- 2.hxg3#
- 1...Sd2
- Tries
- 1.Sxf2?
- threat
- 2.Sd3#
- 2.Sxh3#
- 1...Sxf2
- 2.Qc1#
- 2.hxg3#
- 1...Sc5
- 2.Sxh3#
- 2.Qc1#
- 2.hxg3#
- 1...Sg5
- 2.Sd3#
- 2.Qc1#
- 2.hxg3#
- 1...gxf2!
- threat
- 1.Sfe3?
- threat
- 2.Rf5#
- 1...Sd2
- 2.hxg3#
- 1...Sc3
- 2.hxg3#
- 1...Sc5
- 2.hxg3#
- 1...Sg5
- 2.hxg3#
- 1...Sd6
- 2.hxg3#
- 1...Sf6
- 2.hxg3#
- 1...f5
- 2.Rxf5#
- 1...fxe6!
- threat
- 1.Sd4?
- threat
- 2.Rf5#
- 1...fxe6
- 2.Sxe6#
- 1...Sd2
- 2.hxg3#
- 1...Sc3
- 2.hxg3#
- 1...Sc5
- 2.hxg3#
- 1...Sg5
- 2.hxg3#
- 1...Sd6
- 2.hxg3#
- 1...f5
- 2.Rxf5#
- 1...Sf6!
- threat
- 1.Sd6?
- threat
- 2.Rf5#
- 1...Sxd6
- 2.hxg3#
- 1...f5
- 2.Rxf5#
- 1...fxe6!
- threat
- 1.Sh6?
- threat
- 2.Rf5#
- 1...Sd2
- 2.hxg3#
- 1...Sc3
- 2.hxg3#
- 1...Sc5
- 2.hxg3#
- 1...Sg5
- 2.hxg3#
- 1...Sd6
- 2.hxg3#
- 1...Sf6
- 2.hxg3#
- 1...f5
- 2.Rxf5#
- 1...fxe6!
- threat
- 1.Sg7?
- threat
- 2.Rf5#
- 1...fxe6
- 2.Sxe6#
- 1...Sd2
- 2.hxg3#
- 1...Sc5
- 2.hxg3#
- 1...Sg5
- 2.hxg3#
- 1...Sd6
- 2.hxg3#
- 1...Sf6
- 2.hxg3#
- 1...f5
- 2.Rxf5#
- 1...Sc3!
- threat
- 1.Rxe4+?
- 1...Kxf5
- 2.Qe5#
- 1...Bxe4
- 2.Qe5#
- 1...Kxe4!
- 1...Kxf5
- 1.Qc3?
- threat
- 2.Qe3#
- 1...Sxc3
- 2.hxg3#
- 1...Re2
- 2.Qf3#
- 1...Rf3
- 2.Qxf3#
- 1...f6!
- threat
- 1.Qd4?
- threat
- 2.Qe3#
- 2.hxg3#
- 1...Rxh2
- 2.Qe3#
- 1...gxh2
- 2.Qe3#
- 1...Re2
- 2.hxg3#
- 1...Rg2
- 2.Qe3#
- 1...g2
- 2.Qe3#
- 1...f6
- 2.hxg3#
- 1...Rf3!
- threat
- 1.Qc1+?
- 1...Sd2
- 2.hxg3#
- 1...Rd2!
- 1...Sd2
- 1.Qa3?
- threat
- 2.Qe3#
- 1...Re2
- 2.Qf3#
- 1...Rf3
- 2.Qxf3#
- 1...Sc3
- 2.hxg3#
- 1...f6!
- threat
- 1.Sxf2?
- Keys
- 1.Se7!
- threat
- 2.Rf5#
- 1...fxe6
- 2.Sg6#
- 1...Sd2
- 2.hxg3#
- 1...Sc3
- 2.hxg3#
- 1...Sc5
- 2.hxg3#
- 1...Sg5
- 2.hxg3#
- 1...Sd6
- 2.hxg3#
- 1...Sf6
- 2.hxg3#
- 1...f5
- 2.Sg6#
- 2.Rxf5#
- threat
- 1.Se7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(d);N_GUARD::P(C),XP(b)
- Tries
- Try
- S(B);XR(a)
- Threat
- DUALS(2)
- Refutation
- P(b);XS(B)
- Try
- S(F);
- Threat
- R1(E)
- Vars
- S(d);N_GUARD::P(C),XP(b)
- P(f);::R1(E),XP(f)
- Refutation
- P(f);XP(H)
- Try
- S(F);
- Threat
- R1(E)
- Vars
- P(f);XP(H)::S(F),XP(f)
- S(d);N_GUARD::P(C),XP(b)
- P(f);::R1(E),XP(f)
- Refutation
- S(d);
- Try
- S(F);
- Threat
- R1(E)
- Vars
- S(d);N_GUARD,XS(F)::P(C),XP(b)
- P(f);::R1(E),XP(f)
- Refutation
- P(f);XP(H)
- Try
- S(F);
- Threat
- R1(E)
- Vars
- S(d);N_GUARD::P(C),XP(b)
- P(f);::R1(E),XP(f)
- Refutation
- P(f);XP(H)
- Try
- S(F);
- Threat
- R1(E)
- Vars
- P(f);XP(H)::S(F),XP(f)
- S(d);N_GUARD::P(C),XP(b)
- P(f);::R1(E),XP(f)
- Refutation
- S(d);
- Try
- R(E);CHECK,XS(d)
- Vars
- K(e);P-FLIGHT,XS(F)::QAR1(A)
- B(g);XR(E)::QAB1(A)
- Refutation
- K(e);P-FLIGHT,XR(E)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- S(d);N_GUARD,XQ(A)::P(C),XP(b)
- R(a);N_GUARD::QAR1(A)
- R(a);N_GUARD::QAR1(A),XR(a)
- Refutation
- P(f);
- Try
- Q(A);P_PINS(d)
- Threat
- DUALS(2)
- Vars
- R(a);XP(C)::QAB1(A)
- P(b);XP(C)::QAB1(A)
- R(a);::P(C),XP(b)
- R(a);::QAB1(A)
- P(b);::QAB1(A)
- P(f);::P(C),XP(b)
- Refutation
- R(a);
- Try
- Q(A);CHECK
- Vars
- S(d);P_SPINS(d)::P(C),XP(b)
- Refutation
- R(a);P_SPINR(a)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(a);N_GUARD::QAR1(A)
- R(a);N_GUARD::QAR1(A),XR(a)
- S(d);N_GUARD::P(C),XP(b)
- Refutation
- P(f);
- Try
- Actual
- S(F);
- Threat
- R1(E)
- Vars
- P(f);N_GUARD,XP(H)::S(F)
- S(d);N_GUARD::P(C),XP(b)
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