MESON Chess Problem Database
Problem Display
PID: 100011 (8/2Q2p2/5P2/2pP4/Ppppp2p/RPkbR2P/P7/2K5 w - - 0 1)
Lefkovits, Tamas
Magyar Sakkelet, 1958
#2
10 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...bxa3
- 2.Qa5#
- 1...cxb3
- 2.Qxc5#
- 1...dxe3
- 2.Qe5#
- 1...bxa3
- Tries
- 1.Qa5?
- 1...cxb3
- 2.Qxc5#
- 1...dxe3!
- 1...cxb3
- 1.Qb6?
- 1...bxa3
- 2.Qa5#
- 1...cxb3
- 2.Qxc5#
- 1...dxe3!
- 1...bxa3
- 1.Qd6?
- 1...cxb3
- 2.Qxc5#
- 1...dxe3
- 2.Qe5#
- 1...bxa3!
- 1...cxb3
- 1.Qa7?
- 1...bxa3
- 2.Qa5#
- 1...cxb3
- 2.Qxc5#
- 1...dxe3!
- 1...bxa3
- 1.Qe7?
- 1...cxb3
- 2.Qxc5#
- 1...dxe3
- 2.Qe5#
- 1...bxa3!
- 1...cxb3
- 1.a5?
- 1...cxb3
- 2.Qxc5#
- 1...dxe3
- 2.Qe5#
- 1...bxa3!
- 1...cxb3
- 1.d6?
- 1...bxa3
- 2.Qa5#
- 1...cxb3
- 2.Qxc5#
- 1...dxe3!
- 1...bxa3
- 1.Qa5?
- Keys
- 1.Qh2!
- threat
- 2.Qb2#
- 2.Qc2#
- 2.Qd2#
- 1...bxa3
- 2.Qd2#
- 1...cxb3
- 2.Qc2#
- 1...dxe3
- 2.Qe5#
- 2.Qb2#
- threat
- 1.Qh2!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- P(c);OGATEB,XR(C)::QAB(J)
- P(d);OGATEB,P_SPINP(d),XP(D)::QAR2(J),XP(h)
- P(e);N_SPINB(b),OGATEB,XR(E)::QAB(J)
- Tries
- Try
- Q(J);P_PINP(c)
- Vars
- P(d);N_SPINP(c),OGATEB,P_SPINP(d),XP(D)::QAR2(J),XP(h)
- Refutation
- P(e);N_SPINB(b),XR(E)
- Try
- Q(J);
- Vars
- P(c);OGATEB,XR(C)::QAB(J)
- P(d);OGATEB,P_SPINP(d),XP(D)::QAR2(J),XP(h)
- Refutation
- P(e);N_SPINB(b),XR(E)
- Try
- Q(J);
- Vars
- P(d);OGATEB,P_SPINP(d),XP(D)::QAR2(J),XP(h)
- P(e);N_SPINB(b),OGATEB,XR(E)::QAB(J)
- Refutation
- P(c);XR(C)
- Try
- Q(J);
- Vars
- P(c);OGATEB,XR(C)::QAB(J)
- P(d);OGATEB,P_SPINP(d),XP(D)::QAR2(J),XP(h)
- Refutation
- P(e);N_SPINB(b),XR(E)
- Try
- Q(J);
- Vars
- P(d);OGATEB,P_SPINP(d),XP(D)::QAR2(J),XP(h)
- P(e);N_SPINB(b),OGATEB,XR(E)::QAB(J)
- Refutation
- P(c);XR(C)
- Try
- P(G);
- Vars
- P(d);OGATEB,P_SPINP(d),XP(D)::QAR2(J),XP(h)
- P(e);N_SPINB(b),OGATEB,XR(E)::QAB(J)
- Refutation
- P(c);XR(C)
- Try
- P(H);
- Vars
- P(c);OGATEB,XR(C)::QAB(J)
- P(d);OGATEB,P_SPINP(d),XP(D)::QAR2(J),XP(h)
- Refutation
- P(e);N_SPINB(b),XR(E)
- Try
- Actual
- Q(J);
- Threat
- DUALS(3)
- Vars
- P(c);XR(C)::QAB1(J)
- P(d);P_SPINP(d),XP(D)::QAR1(J)
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