MESON Chess Problem Database
Problem Display
PID: 108078 (5KN1/3p3p/6kr/4R2n/5P2/3N4/6r1/3Q4 w - - 0 1)
Fortune, Robert
1st Prize, Wurzburg-75 JT, 1949
#2
6 + 6
| 70 | American Chess Problemist | 1950 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Rg5#
- 2.Qg4#
- 1...Rb2
- 2.Rg5#
- 2.Qg4#
- 1...Rc2
- 2.Rg5#
- 2.Qg4#
- 1...Rd2
- 2.Rg5#
- 2.Qg4#
- 1...Re2
- 2.Rg5#
- 1...Rf2
- 2.Rg5#
- 2.Qg4#
- 1...Rh2
- 2.Rg5#
- 2.Qg4#
- 1...Rg4
- 2.Qxg4#
- 1...Rg5
- 2.Rxg5#
- 1...Sg3
- 2.Rg5#
- 2.Qg4#
- 1...Sxf4
- 2.Sxf4#
- 1...Sf6
- 2.Se7#
- 1...Ra2
- Tries
- 1.Rf5?
- threat
- 2.Se7#
- 1...Re2
- 2.Rg5#
- 1...Kxf5!
- threat
- 1.Rxh5?
- threat
- 2.Se5#
- 2.f5#
- 1...Re2
- 2.Rg5#
- 1...Rg4
- 2.Qxg4#
- 1...Rg5
- 2.Rxg5#
- 1...Rf2
- 2.Se5#
- 2.Rg5#
- 2.Qg4#
- 1...d6
- 2.f5#
- 1...Rxh5!
- threat
- 1.Qc2?
- threat
- 2.Sf2#
- 1...Rxc2
- 2.Rg5#
- 1...Sxf4
- 2.Sxf4#
- 1...Rd2
- 2.Rg5#
- 1...Re2
- 2.Rg5#
- 1...Rf2
- 2.Sxf2#
- 2.Rg5#
- 1...Rg5
- 2.Rxg5#
- 1...Sg3
- 2.Rg5#
- 1...Sf6
- 2.Se7#
- 1...Sg7
- 2.Qxg2#
- 1...Rg3!
- threat
- 1.Qe2?
- threat
- 2.Qe4#
- 1...Rxe2
- 2.Rg5#
- 1...Rg5
- 2.Rxg5#
- 1...Sg3
- 2.Rg5#
- 2.Qg4#
- 1...Sf6
- 2.Se7#
- 1...Sg7
- 2.Qxg2#
- 1...d5!
- threat
- 1.Qf3?
- threat
- 2.Qe4#
- 1...Re2
- 2.Rg5#
- 2.Qg4#
- 1...Rg5
- 2.Rxg5#
- 1...Sg3
- 2.Rg5#
- 2.Qg4#
- 1...Sf6
- 2.Se7#
- 1...Sg7
- 2.Qxg2#
- 1...d5!
- threat
- 1.Qa4?
- threat
- 2.Qe4#
- 1...Re2
- 2.Rg5#
- 1...Rg5
- 2.Rxg5#
- 1...Sg3
- 2.Rg5#
- 1...Sf6
- 2.Se7#
- 1...d5
- 2.Qe8#
- 1...Sg7!
- threat
- 1.Qc1?
- threat
- 2.f5#
- 1...Sxf4
- 2.Sxf4#
- 1...Rd2
- 2.Rg5#
- 1...Rf2
- 2.Rg5#
- 1...Rg5
- 2.Rxg5#
- 1...Sg3
- 2.Rg5#
- 1...Sf6
- 2.Se7#
- 1...Sg7!
- threat
- 1.Rf5?
- Keys
- 1.Qd2!
- threat
- 2.f5#
- 1...Rxd2
- 2.Rg5#
- 1...Sxf4
- 2.Sxf4#
- 1...Rf2
- 2.Rg5#
- 1...Rg5
- 2.Rxg5#
- 1...Sg3
- 2.Rg5#
- 1...Sf6
- 2.Se7#
- 1...Sg7
- 2.Qxg2#
- threat
- 1.Qd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- R(a);N_GUARD::R1(D)
- R(a);N_GUARD::QAR2(A),XR(a)
- R(a);N_GUARD::R1(D),XR(a)
- S(b);XP(C)::S(B),XS(b)
- S(b);SBLOCK::S(F)
- Tries
- Try
- R(D);
- Threat
- S(F)
- Vars
- R(a);N_GUARD::R1(D)
- Refutation
- K(c);S_FLIGHT,XR(D)
- Try
- R(D);XS(b)
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD::R1(D)
- R(a);N_GUARD::QAR2(A),XR(a)
- R(a);N_GUARD::R1(D),XR(a)
- P(e);::P(C)
- Refutation
- R(d);XR(D)
- Try
- Q(A);
- Threat
- QAB(A)+S(B)
- Vars
- R(a);N_GUARD,XQ(A)::R1(D)
- S(b);XP(C)::QAB(A)+S(B),DCHECK,XS(b)
- R(a);N_GUARD::R1(D)
- R(a);N_GUARD::R1(D),XR(a)
- S(b);S_CUTR(a)::R1(D)
- S(b);SBLOCK::S(F)
- S(b);N_GUARD::QAR(A),XR(a)
- Refutation
- R(a);
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- R(a);N_GUARD,XQ(A)::R1(D)
- R(a);N_GUARD::R1(D),XR(a)
- S(b);SBLOCK::S(F)
- S(b);N_GUARD::QAR(A),XR(a)
- Refutation
- P(e);
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- R(a);N_GUARD::R1(D),XR(a)
- S(b);SBLOCK::S(F)
- S(b);N_GUARD::QAR(A),XR(a)
- Refutation
- P(e);
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- R(a);N_GUARD::R1(D)
- R(a);N_GUARD::R1(D),XR(a)
- S(b);S_CUTR(a)::R1(D)
- S(b);SBLOCK::S(F)
- P(e);OGATE::QAB(A)
- Refutation
- S(b);
- Try
- Q(A);
- Threat
- P(C)
- Vars
- S(b);XP(C)::S(B),XS(b)
- R(a);N_GUARD::R1(D)
- R(a);N_GUARD,P_PINP(C)::R1(D)
- R(a);N_GUARD::R1(D),XR(a)
- S(b);S_CUTR(a)::R1(D)
- S(b);SBLOCK::S(F)
- Refutation
- S(b);
- Try
- Actual
- Q(A);
- Threat
- P(C)
- Vars
- R(a);N_GUARD,XQ(A)::R1(D)
- S(b);XP(C)::S(B),XS(b)
- R(a);N_GUARD,P_PINP(C)::R1(D)
- R(a);N_GUARD::R1(D),XR(a)
- S(b);S_CUTR(a)::R1(D)
- S(b);SBLOCK::S(F)
- S(b);N_GUARD::QAR(A),XR(a)
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