MESON Chess Problem Database
Problem Display
PID: 158361 (6B1/8/3b2K1/n1nNkPRp/R1r5/2Pb3N/8/7Q w - - 0 1)
Ahues, Herbert Siegfried Oskar
Schweizerische Arbeiter Schachzeitung, 1961
#2
9 + 7
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Rxc3
- 2.Qh2#
- 1...Rd4
- 2.cxd4#
- 1...Re4
- 2.f6#
- 1...Bf1
- 2.f6#
- 1...Be2
- 2.f6#
- 1...Be4
- 2.Qh2#
- 1...Bxf5+
- 2.Rxf5#
- 1...Rxc3
- Tries
- 1.Se3?
- threat
- 2.Qd5#
- 1...Bxf5+
- 2.Rxf5#
- 1...Rd4
- 2.cxd4#
- 1...Re4
- 2.f6#
- 1...Be4
- 2.Qh2#
- 1...Se4!
- threat
- 1.Sb4?
- threat
- 2.Qd5#
- 1...Bxf5+
- 2.Rxf5#
- 1...Re4
- 2.f6#
- 1...Be4
- 2.Qh2#
- 1...Se4
- 2.Sxd3#
- 1...Rd4!
- threat
- 1.Sdf4?
- threat
- 2.Qd5#
- 1...Bxf5+
- 2.Rxf5#
- 1...Rd4
- 2.cxd4#
- 1...Re4
- 2.f6#
- 1...Se4
- 2.Sxd3#
- 1...Be4!
- threat
- 1.Sf6?
- threat
- 2.Qd5#
- 1...Bxf5+
- 2.Rxf5#
- 1...Rd4
- 2.cxd4#
- 1...Be4
- 2.Qh2#
- 1...Se4
- 2.Sd7#
- 1...Re4!
- threat
- 1.Sc7?
- threat
- 2.Qd5#
- 1...Bxf5+
- 2.Rxf5#
- 1...Rd4
- 2.cxd4#
- 1...Re4
- 2.f6#
- 1...Be4
- 2.Qh2#
- 1...Se4!
- threat
- 1.Se7?
- threat
- 2.Qd5#
- 1...Bxf5+
- 2.Rxf5#
- 1...Rd4
- 2.cxd4#
- 1...Re4
- 2.f6#
- 1...Be4
- 2.Qh2#
- 1...Se4!
- threat
- 1.Qe1+?
- 1...Re4
- 2.f6#
- 1...Be4
- 2.Qg3#
- 1...Se4
- 2.f6#
- 1...Be2!
- 1...Re4
- 1.Qh2+?
- 1...Rf4
- 2.Qxf4#
- 1...Ke4!
- 1...Rf4
- 1.Se3?
- Keys
- 1.Sb6!
- threat
- 2.Qd5#
- 1...Bxf5+
- 2.Rxf5#
- 1...Rd4
- 2.cxd4#
- 1...Re4
- 2.f6#
- 1...Be4
- 2.Qh2#
- 1...Se4
- 2.Sd7#
- threat
- 1.Sb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- R(b);N_GUARD,XP(B)::QAB(A)
- R(b);OGATE::P(B),XR(b)
- R(b);N_PINP(F)::R(G)+P(F)
- B(a);N_PINP(F)::R(G)+P(F)
- B(a);SBLOCK,S_CUTR(b)::QAB(A)
- B(a);CHECK,OGATE,P_SPINB(a),XP(F)::R1(G),XB(a)
- Tries
- Try
- S(E);
- Threat
- QAR1(A)
- Vars
- B(a);CHECK,OGATE,P_SPINB(a),XP(F)::R1(G),XB(a)
- R(b);OGATE::P(B),XR(b)
- R(b);N_PINP(F)::R(G)+P(F)
- B(a);SBLOCK,S_CUTR(b)::QAB(A)
- Refutation
- S(d);N_PINP(F)
- Try
- S(E);
- Threat
- QAR1(A)
- Vars
- B(a);CHECK,OGATE,P_SPINB(a),XP(F)::R1(G),XB(a)
- R(b);N_PINP(F)::R(G)+P(F)
- B(a);SBLOCK,S_CUTR(b)::QAB(A)
- S(d);N_GUARD,N_PINP(F)::S(E),XB(a)
- Refutation
- R(b);
- Try
- S(E);
- Threat
- QAR1(A)
- Vars
- B(a);CHECK,OGATE,P_SPINB(a),XP(F)::R1(G),XB(a)
- R(b);OGATE::P(B),XR(b)
- R(b);N_PINP(F)::R(G)+P(F)
- S(d);N_GUARD,N_PINP(F)::S(E),XB(a)
- Refutation
- B(a);
- Try
- S(E);
- Threat
- QAR1(A)
- Vars
- B(a);CHECK,OGATE,P_SPINB(a),XP(F)::R1(G),XB(a)
- R(b);OGATE::P(B),XR(b)
- B(a);S_CUTR(b)::QAB(A)
- S(d);N_GUARD,N_PINP(F)::S(E)
- Refutation
- R(b);N_PINP(F)
- Try
- S(E);
- Threat
- QAR1(A)
- Vars
- B(a);CHECK,OGATE,P_SPINB(a),XP(F)::R1(G),XB(a)
- R(b);OGATE::P(B),XR(b)
- R(b);N_PINP(F)::R(G)+P(F)
- B(a);SBLOCK,S_CUTR(b)::QAB(A)
- Refutation
- S(d);N_PINP(F)
- Try
- S(E);
- Threat
- QAR1(A)
- Vars
- B(a);CHECK,OGATE,P_SPINB(a),XP(F)::R1(G),XB(a)
- R(b);OGATE::P(B),XR(b)
- R(b);N_PINP(F)::R(G)+P(F)
- B(a);SBLOCK,S_CUTR(b)::QAB(A)
- Refutation
- S(d);N_PINP(F)
- Try
- Q(A);CHECK
- Vars
- R(b);N_PINP(F),P_SPINR(b)::R(G)+P(F)
- B(a);P_SPINB(a),SBLOCK,S_CUTR(b)::QAB(A)
- S(d);N_PINP(F),P_SPINS(d)::R(G)+P(F)
- Refutation
- B(a);N_PINP(F),P_SPINB(a)
- Try
- Q(A);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAB1(A),XR(b)
- Refutation
- K(e);N_PINP(F),P-FLIGHT,P_SPINR(b)
- Try
- Actual
- S(E);
- Threat
- QAR1(A)
- Vars
- B(a);CHECK,OGATE,P_SPINB(a),XP(F)::R1(G),XB(a)
- R(b);OGATE::P(B),XR(b)
- R(b);N_PINP(F)::R(G)+P(F)
- B(a);SBLOCK,S_CUTR(b)::QAB(A)
- S(d);N_GUARD,N_PINP(F)::S(E)
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