MESON Chess Problem Database
Problem Display
PID: 272198 (r7/1NR1P2p/p4p2/r2k3K/p2N1P2/6P1/1p1R1P2/1B4n1 w - - 0 1)
Junker, Karl
1st HM., Zurcher Woche, 1963
(First published on Fri Feb 1 1963)
#2
10 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Rc5
- 2.Rxc5#
- 1...Rd8
- 2.exd8Q#
- 2.exd8R#
- 1...Rc5
- Tries
- 1.Sd8?
- threat
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.S4e6#
- 1...Kd6+
- 2.Sb5#
- 1...Rxd8
- 2.exd8Q#
- 2.exd8R#
- 1...Rb5
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sxb5#
- 2.Sf5#
- 2.S4e6#
- 1...Se2
- 2.Sxe2#
- 1...Sf3
- 2.Sxf3#
- 1...f5
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sxf5#
- 2.S4e6#
- 1...Rc5!
- threat
- 1.Bf5?
- threat
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Se6#
- 1...Rc5
- 2.Rxc5#
- 1...b1Q
- 2.Sc2#
- 1...b1B
- 2.Sc2#
- 1...Rb5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sxb5#
- 2.Se6#
- 1...Se2
- 2.Sxe2#
- 1...Sf3
- 2.Sxf3#
- 1...b1S!
- threat
- 1.f3?
- threat
- 2.Ba2#
- 2.Be4#
- 1...Rc5
- 2.Rxc5#
- 1...Rb5
- 2.Be4#
- 1...f5
- 2.Ba2#
- 1...Sxf3!
- threat
- 1.f5?
- threat
- 2.Sf3#
- 1...Ke5
- 2.Sc6#
- 1...Rc5
- 2.Rxc5#
- 1...Sf3
- 2.Sxf3#
- 1...Se2!
- threat
- 1.e8Q?
- threat
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Se6#
- 2.Ba2#
- 2.Be4#
- 2.Qc6#
- 2.Qd7#
- 2.Qf7#
- 2.Qe4#
- 2.Qe6#
- 1...Rc5
- 2.Rxc5#
- 2.Qf7#
- 2.Qe6#
- 1...Rb5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sxb5#
- 2.Sf5#
- 2.Se6#
- 2.Be4#
- 2.Qc6#
- 2.Qd7#
- 2.Qf7#
- 2.Qe4#
- 2.Qe6#
- 1...Rd8
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Se6#
- 2.Ba2#
- 2.Be4#
- 2.Qc6#
- 2.Qf7#
- 2.Qe4#
- 2.Qe6#
- 2.Qxd8#
- 1...Se2
- 2.Sxe2#
- 2.Ba2#
- 2.Be4#
- 2.Qc6#
- 2.Qd7#
- 2.Qf7#
- 2.Qe4#
- 2.Qe6#
- 1...Sf3
- 2.Sxf3#
- 2.Ba2#
- 2.Be4#
- 2.Qc6#
- 2.Qd7#
- 2.Qf7#
- 2.Qe4#
- 2.Qe6#
- 1...f5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sxf5#
- 2.Se6#
- 2.Ba2#
- 2.Qc6#
- 2.Qd7#
- 2.Qf7#
- 2.Qe5#
- 2.Qe6#
- 1...Rxe8!
- threat
- 1.e8S?
- threat
- 2.Sxf6#
- 1...Rc5
- 2.Rxc5#
- 1...f5
- 2.Sf6#
- 1...Rxe8!
- threat
- 1.e8R?
- threat
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Se6#
- 2.Ba2#
- 2.Be4#
- 1...Rc5
- 2.Rxc5#
- 1...Rb5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sxb5#
- 2.Sf5#
- 2.Se6#
- 2.Be4#
- 1...Se2
- 2.Sxe2#
- 2.Ba2#
- 2.Be4#
- 1...Sf3
- 2.Sxf3#
- 2.Ba2#
- 2.Be4#
- 1...f5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sxf5#
- 2.Se6#
- 2.Ba2#
- 2.Re5#
- 1...Rxe8!
- threat
- 1.Sd8?
- Keys
- 1.Bd3!
- threat
- 2.Rd7#
- 1...Kxd4+
- 2.Bf5#
- 1...Rd8
- 2.exd8Q#
- 2.exd8R#
- threat
- 1.Bd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(d);N_GUARD::R1(I),XR(d)
- R(i);OGATE::PXR(i)=Q
- Tries
- Try
- S(H);
- Threat
- DUALS(6)
- Vars
- K(e);CHECK,P-FLIGHT::R(B)+S(E),DCHECK
- R(i);OGATE,XS(H)::PXR(i)=Q
- S(a);::R(B)+S(E),XS(a)
- Refutation
- R(d);
- Try
- B(A);
- Threat
- DUALS(6)
- Vars
- R(d);N_GUARD::R1(I),XR(d)
- P(b);::R(B)+S(E)
- S(a);::R(B)+S(E),XS(a)
- Refutation
- P(b);
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD::R1(I),XR(d)
- R(d);::B(A)
- P(g);::B(A)
- Refutation
- S(a);XP(C)
- Try
- P(F);
- Threat
- R(B)+S(E)
- Vars
- K(e);N_GUARD,P-FLIGHT::S(E)
- R(d);N_GUARD::R1(I),XR(d)
- S(a);::R(B)+S(E),XS(a)
- Refutation
- S(a);
- Try
- P(J);
- Threat
- DUALS(14)
- Refutation
- R(i);XQ(J)
- Try
- P(J);
- Threat
- S(J),XP(g)
- Vars
- R(d);N_GUARD::R1(I),XR(d)
- P(g);::S(J)
- Refutation
- R(i);XS(J)
- Try
- P(J);
- Threat
- DUALS(9)
- Vars
- R(d);N_GUARD::R1(I),XR(d)
- Refutation
- R(i);XR(J)
- Try
- Actual
- B(A);
- Threat
- R(I)
- Vars
- K(e);CHECK,OGATEB,P-FLIGHT,XS(E)::R(B)+B(A)
- R(i);OGATE::PXR(i)=Q
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