MESON Chess Problem Database
Problem Display
PID: 170168 (5B2/1N1pn3/4p1Q1/1N1p1r1B/k7/8/pR2pP2/2R1K3 w - - 0 1)
Jaeger, Peter R
Tages-Anzeiger, 1984
#2
9 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxf2
- 2.Qc2#
- 1...Rf4
- 2.Qc2#
- 1...Re5
- 2.Qc2#
- 1...Rg5
- 2.Qc2#
- 1...Rxh5
- 2.Qc2#
- 1...Rf6
- 2.Qc2#
- 1...Rf7
- 2.Qc2#
- 1...Rxf8
- 2.Qc2#
- 1...Sc6
- 2.Sc3#
- 1...Sxg6
- 2.Sc3#
- 2.Rb4#
- 1...Sc8
- 2.Sc3#
- 2.Rb4#
- 1...Sg8
- 2.Sc3#
- 2.Rb4#
- 1...a1Q
- 2.Rxa1#
- 1...a1S
- 2.Rxa1#
- 1...a1B
- 2.Rxa1#
- 1...a1R
- 2.Rxa1#
- 1...d4
- 2.Rc4#
- 1...e5
- 2.Qa6#
- 1...Rxf2
- Tries
- 1.Bxe2?
- threat
- 2.Bd1#
- 1...Rxf2
- 2.Qc2#
- 1...a1S
- 2.Rxa1#
- 1...Re5
- 2.Qc2#
- 1...Rf3!
- threat
- 1.Bxe7?
- threat
- 2.Sc3#
- 2.Rb4#
- 1...Rf3
- 2.Rb4#
- 1...Rf4
- 2.Sc3#
- 2.Qc2#
- 1...d4
- 2.Rc4#
- 2.Rb4#
- 1...d6!
- threat
- 1.Qxf5?
- threat
- 2.Qc2#
- 1...Sxf5
- 2.Sc3#
- 2.Rb4#
- 1...a1S
- 2.Rxa1#
- 1...exf5!
- threat
- 1.Qe8?
- threat
- 2.Qa8#
- 1...Sc6
- 2.Sc3#
- 1...Sc8
- 2.Sc3#
- 2.Rb4#
- 1...Rxf8!
- threat
- 1.Qg3?
- threat
- 2.Qa3#
- 2.Qb3#
- 1...a1Q
- 2.Rxa1#
- 2.Qb3#
- 1...a1S
- 2.Rxa1#
- 2.Qa3#
- 1...a1R
- 2.Rxa1#
- 2.Qb3#
- 1...Rf3!
- threat
- 1.Qg4+?
- 1...d4
- 2.Rc4#
- 2.Qxd4#
- 1...Rf4!
- 1...d4
- 1.f4?
- 1...Rxf4
- 2.Qc2#
- 1...Rxh5
- 2.Qc2#
- 1...Rxf8
- 2.Qc2#
- 1...Sxg6
- 2.Sc3#
- 2.Rb4#
- 1...a1Q
- 2.Rxa1#
- 1...a1S
- 2.Rxa1#
- 1...a1B
- 2.Rxa1#
- 1...a1R
- 2.Rxa1#
- 1...Re5
- 2.Qc2#
- 1...Rg5
- 2.Qc2#
- 1...Rf6
- 2.Qc2#
- 1...Rf7
- 2.Qc2#
- 1...Sc6
- 2.Sc3#
- 1...Sc8
- 2.Sc3#
- 2.Rb4#
- 1...Sg8
- 2.Sc3#
- 2.Rb4#
- 1...d4
- 2.Rc4#
- 1...e5
- 2.Qa6#
- 1...d6!
- 1...Rxf4
- 1.Bxe2?
- Keys
- 1.Rd1!
- threat
- 2.Rd4#
- 1...exd1Q+
- 2.Bxd1#
- 1...exd1R+
- 2.Bxd1#
- 1...exd1S
- 2.Bxd1#
- 1...exd1B
- 2.Bxd1#
- 1...a1Q
- 2.Rxa1#
- 1...a1R
- 2.Rxa1#
- 1...Rf4
- 2.Qc2#
- 1...Sc6
- 2.Sc3#
- 1...d4
- 2.Rxd4#
- 1...e5
- 2.Qa6#
- threat
- 1.Rd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 9
- Sets
- R(e);OGATE,XP(D)::QAB(G)
- R(e);OGATE::QAB(G)
- R(e);OGATE,XB(F)::QAB(G)
- R(e);OGATE,XB(I)::QAB(G)
- S(h);::S(E)
- P(a);OGATEB,P_PINR(A)::R(A),XQ(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XB(a)
- P(a);OGATEB,P_PINR(A)::R(A),XR(a)
- P(d);N_GUARD::R(A)
- P(f);OGATE::QAR2(G)
- Tries
- Try
- B(F);XP(b)
- Threat
- B(F)
- Vars
- R(e);OGATE,XP(D)::QAB(G)
- P(a);OGATEB::R(A),XS(a)
- R(e);OGATE,P_PINB(F)::QAB(G)
- Refutation
- R(e);
- Try
- B(I);XS(h)
- Threat
- DUALS(2)
- Vars
- R(e);::R1(C)
- Refutation
- P(g);
- Try
- Q(G);XR(e)
- Threat
- QAB(G)
- Vars
- P(a);OGATEB::R(A),XS(a)
- Refutation
- P(f);XQ(G)
- Try
- Q(G);
- Threat
- QAR(G)
- Vars
- S(h);::S(E)
- Refutation
- R(e);XB(I)
- Try
- Q(G);
- Threat
- DUALS(2)
- Refutation
- R(e);
- Try
- Q(G);CHECK
- Refutation
- R(e);P_SPINR(e)
- Try
- P(D);
- Vars
- R(e);OGATE,XP(D)::QAB(G)
- R(e);OGATE,XB(F)::QAB(G)
- R(e);OGATE,XB(I)::QAB(G)
- P(a);OGATEB,P_PINR(A)::R(A),XQ(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XB(a)
- P(a);OGATEB,P_PINR(A)::R(A),XR(a)
- R(e);OGATE::QAB(G)
- S(h);::S(E)
- P(d);N_GUARD::R(A)
- P(f);OGATE::QAR2(G)
- Refutation
- P(g);
- Try
- Actual
- R(A);
- Threat
- R(A)
- Vars
- P(b);CHECK,OGATE,XR(A)::B(F),XQ(b)
- P(b);CHECK,OGATE,XR(A)::B(F),XR(b)
- P(b);OGATE,XR(A)::B(F),XS(b)
- P(b);OGATE,XR(A)::B(F),XB(b)
- P(a);OGATEB,P_PINR(A)::R(A),XQ(a)
- P(a);OGATEB,P_PINR(A)::R(A),XR(a)
- R(e);OGATE::QAB(G)
- S(h);::S(E)
- P(d);::R(A),XP(d)
- P(f);OGATE::QAR2(G)
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