MESON Chess Problem Database
Problem Display
PID: 260959 (5B2/2R5/3qP3/P1Pk2PK/Q2Np3/1p3N1B/8/1r1nR3 w - - 0 1)
Lobusov, Andrey Jakovlevic
Neue Zurcher Zeitung, 2004
#2
12 + 6
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qxc5
- 2.Rxc5#
- 1...Qxe6
- 2.Bxe6#
- 1...Qd7
- 2.Rxd7#
- 1...Ra1
- 2.Qxb3#
- 1...b2
- 2.Qb3#
- 2.Qa2#
- 1...Qxc5
- Tries
- 1.Sc2?
- threat
- 2.Qd4#
- 2.Qxe4#
- 1...Qxc5
- 2.Rxc5#
- 2.Qxe4#
- 1...Qxc7
- 2.Qxe4#
- 1...Qxe6
- 2.Qd4#
- 1...exf3
- 2.Qd4#
- 2.Qe4#
- 1...Qf4
- 2.Qd4#
- 1...Sf2
- 2.Se3#
- 2.Qd4#
- 1...Sc3
- 2.Se3#
- 2.Qd4#
- 1...Se3
- 2.Sxe3#
- 2.Qd4#
- 1...e3
- 2.Qd4#
- 1...Qe5!
- threat
- 1.Sxb3?
- threat
- 2.Qd4#
- 2.Qxe4#
- 1...Qxc5
- 2.Rxc5#
- 2.Qxe4#
- 1...Qxc7
- 2.Qxe4#
- 1...Qxe6
- 2.Qd4#
- 1...exf3
- 2.Qd4#
- 2.Qe4#
- 1...Qf4
- 2.Qd4#
- 1...Sf2
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Se3
- 2.Qd4#
- 1...e3
- 2.Qd4#
- 1...Qe5!
- threat
- 1.Sb5?
- threat
- 2.Qd4#
- 2.Qxe4#
- 1...Qxc5
- 2.Rxc5#
- 2.Qxe4#
- 1...Qxc7
- 2.Sxc7#
- 2.Qxe4#
- 1...Qxe6
- 2.Qd4#
- 1...exf3
- 2.Qd4#
- 2.Qe4#
- 1...Qf4
- 2.Qd4#
- 1...Sf2
- 2.Sc3#
- 2.Qd4#
- 1...Sc3
- 2.Sxc3#
- 2.Qd4#
- 1...Se3
- 2.Sc3#
- 2.Qd4#
- 1...e3
- 2.Qd4#
- 1...Qe5!
- threat
- 1.Sf5?
- threat
- 2.Qxe4#
- 1...Kxe6
- 2.Se3#
- 1...Qxe6
- 2.Qd4#
- 1...exf3
- 2.Qd4#
- 2.Qe4#
- 1...Qe5
- 2.Se7#
- 1...Qf4
- 2.Se7#
- 1...Sf2
- 2.Se3#
- 1...Sc3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...e3!
- threat
- 1.cxd6?
- threat
- 2.Qb5#
- 2.Qc6#
- 2.Qc4#
- 1...exf3
- 2.Qc4#
- 1...e3
- 2.Qc6#
- 1...Sb2
- 2.Qb5#
- 2.Qc6#
- 1...Sc3
- 2.Qc6#
- 2.Qc4#
- 1...Se3
- 2.Qb5#
- 2.Qc6#
- 1...Rc1!
- threat
- 1.Sc2?
- Keys
- 1.Sc6!
- threat
- 2.Qd4#
- 1...Kxc5
- 2.Sb4#
- 1...Qxc5
- 2.Qxe4#
- 1...Qxc7
- 2.Qxe4#
- 1...Qe5
- 2.Se7#
- threat
- 1.Sc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- Q(f);OGATE,XP(G)::R1(K),XQ(f)
- Q(f);OGATE,XP(J)::B(C),XQ(f)
- Q(f);OGATEB::R(K),XQ(f)
- R(a);N_GUARD::QAB(D),XP(c)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(f);XR(K)::QAB1(D),XP(d)
- Q(f);XP(J)::QAR1(D)
- Q(f);::QAR1(D)
- P(d);::QAR1(D)
- Refutation
- Q(f);P_PINP(H)
- Try
- S(E);XP(c)
- Threat
- DUALS(2)
- Vars
- Q(f);XR(K)::QAB1(D),XP(d)
- Q(f);XP(J)::QAR1(D)
- Q(f);::QAR1(D)
- S(b);::QAR1(D)
- P(d);::QAR1(D)
- Refutation
- Q(f);P_PINP(H)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(f);XP(J)::QAR1(D)
- Q(f);::QAR1(D)
- P(d);::QAR1(D)
- Refutation
- Q(f);P_PINP(H)
- Try
- S(E);
- Threat
- QAB1(D),XP(d)
- Vars
- K(e);P_SPINP(d),S_CUTS(b),S_FLIGHT,XP(J)::B(C)+S(E)
- Q(f);SBLOCK,XP(J)::QAR1(D)
- Q(f);N_GUARD::S(E)
- S(b);N_GUARD::S(E)
- S(b);N_GUARD::S(E),XS(b)
- Refutation
- P(d);
- Try
- P(G);XQ(f)
- Threat
- DUALS(3)
- Vars
- P(d);XS(B)::QAB1(D)
- P(d);::QAB1(D)
- Refutation
- R(a);
- Try
- Actual
- S(E);
- Threat
- QAR1(D)
- Vars
- K(e);N_GUARD,P-FLIGHT,P_SPINQ(f),XP(G)::R(K)+S(E)
- Q(f);XP(G)::QAB1(D),XP(d)
- Q(f);XR(K)::QAB1(D),XP(d)
- Q(f);N_GUARD,P_PINP(H)::S(E)
Developed and maintained by Brian Stephenson.
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