MESON Chess Problem Database
Problem Display
PID: 123035 (2nK4/2Rp2N1/bpPkP3/1p3R2/Q2p1p1B/r7/2PqP2p/8 w - - 0 1)
Szoghy, Jozsef
Northwest Chess, 1977
#2
10 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Qb4#
- 2.Qxd4#
- 1...Qe1
- 2.Qxd4#
- 1...Qe3
- 2.Qb4#
- 1...Qb4
- 2.Qxb4#
- 1...Qa5
- 2.Qxd4#
- 1...Qd1
- 2.Qb4#
- 1...Qxc2
- 2.Qxd4#
- 1...Qxe2
- 2.Qb4#
- 2.Qxd4#
- 1...Qd3
- 2.Qb4#
- 1...Sa7
- 2.Be7#
- 1...Se7
- 2.Bxe7#
- 1...d3
- 2.Qd4#
- 1...b4
- 2.Rxd7#
- 1...dxc6
- 2.Rd7#
- 1...dxe6
- 2.Se8#
- 1...Qc1
- Tries
- 1.Qb3?
- threat
- 2.Se8#
- 2.Rd5#
- 2.Qd5#
- 1...dxc6
- 2.Se8#
- 2.Rd7#
- 1...dxe6
- 2.Se8#
- 2.Qxe6#
- 1...h1Q
- 2.Se8#
- 1...h1B
- 2.Se8#
- 1...Se7
- 2.Se8#
- 2.Bxe7#
- 1...Rxb3!
- threat
- 1.Qxb5?
- threat
- 2.Rd5#
- 2.Rxd7#
- 2.Qd5#
- 2.Qe5#
- 1...Qxe2
- 2.Rd5#
- 2.Rxd7#
- 2.Qb4#
- 2.Qd5#
- 1...dxc6
- 2.Rxc6#
- 2.Rd7#
- 2.Qxc6#
- 2.Qe5#
- 1...dxe6
- 2.Se8#
- 2.Rd7#
- 2.Qe5#
- 1...h1Q
- 2.Rxd7#
- 2.Qe5#
- 1...h1B
- 2.Rxd7#
- 2.Qe5#
- 1...Qe3
- 2.Rd5#
- 2.Rxd7#
- 2.Qb4#
- 2.Qd5#
- 1...Qa5
- 2.Rd5#
- 2.Rxd7#
- 1...Re3
- 2.Rd5#
- 2.Rxd7#
- 2.Qd5#
- 1...Ra5
- 2.Rd5#
- 2.Rxd7#
- 1...Se7
- 2.Bxe7#
- 2.Rxd7#
- 2.Qe5#
- 1...Bxb5!
- threat
- 1.Qxa3+?
- 1...Qb4
- 2.Qxb4#
- 1...b4!
- 1...Qb4
- 1.Qc4?
- threat
- 2.Se8#
- 2.Rd5#
- 2.Rxd7#
- 2.Qd5#
- 1...dxc6
- 2.Se8#
- 2.Rxc6#
- 2.Rd7#
- 2.Qxc6#
- 1...dxe6
- 2.Se8#
- 2.Rd7#
- 2.Qxe6#
- 1...h1Q
- 2.Se8#
- 2.Rxd7#
- 1...h1B
- 2.Se8#
- 2.Rxd7#
- 1...Se7
- 2.Se8#
- 2.Bxe7#
- 2.Rxd7#
- 1...bxc4!
- threat
- 1.e7?
- threat
- 2.e8S#
- 1...Qxe2
- 2.Qb4#
- 2.Qxd4#
- 1...Sxe7
- 2.Bxe7#
- 1...Qe3
- 2.Qb4#
- 1...Re3!
- threat
- 1.Qb3?
- Keys
- 1.e4!
- threat
- 2.Rd5#
- 1...dxc6
- 2.Rd7#
- 1...dxe6
- 2.Se8#
- 1...dxe4 ep
- 2.Qxf4#
- 1...fxe4 ep
- 2.Bg3#
- 1...Se7
- 2.Bxe7#
- threat
- 1.e4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 10
- Sets
- Q(a);N_GUARD::QAR2(C),XP(d)
- Q(a);N_GUARD::QAB(C)
- Q(a);N_GUARD::QAB(C),XQ(a)
- Q(a);N_GUARD,XP(A)::QAR2(C),XP(d)
- S(k);N_GUARD::B(D)
- S(k);N_GUARD::B(D),XS(k)
- P(d);S_CUTQ(a)::QAR2(C)
- P(f);::R1(H),XP(j)
- P(j);SBLOCK,XP(F)::R1(H)
- P(j);SBLOCK,XP(G)::S(I)
- Tries
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- P(b);::S(I)
- Refutation
- R(c);XQ(C)
- Try
- Q(C);XP(f)
- Threat
- DUALS(4)
- Refutation
- B(g);XQ(C)
- Try
- Q(C);CHECK,XR(c)
- Vars
- Q(a);N_GUARD,P_SPINQ(a)::QAB(C),XQ(a)
- Refutation
- P(f);P_SPINP(f)
- Try
- Q(C);
- Threat
- DUALS(4)
- Refutation
- P(f);XQ(C)
- Try
- P(G);
- Threat
- P=S
- Vars
- S(k);OGATE,XP(G)::B(D),XS(k)
- Q(a);N_GUARD::QAB(C)
- Refutation
- R(c);
- Try
- Actual
- P(B);
- Threat
- R1(E)
- Vars
- P(j);SBLOCK,XP(F)::R1(H)
- P(j);SBLOCK,XP(G)::S(I)
- P(d);EP,OGATE,XP(B)::QAB(C),XP(e)
- P(e);EP,OGATEB,XP(B)::B(D)
- S(k);N_GUARD::B(D),XS(k)
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