MESON Chess Problem Database

Problem Display
PID: 274089 (8/Kprp3n/1R1p2B1/3k4/2p3N1/bP2P3/1p5Q/1n6 w - - 0 1)

Schor, Laszlo

3rd Comm., Zurcher Woche, 1963

8/Kprp3n/1R1p2B1/3k4/2p3N1/bP2P3/1p5Q/1n6

#2

7 + 10

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qxd6#
    • 1...Ke6
      • 2.Qe5#
    • 1...Rc5
      • 2.Rxd6#
      • 2.Qxd6#
  • Tries
    • 1.Bf7+?
      • 1...Kc5
        • 2.Qxd6#
      • 1...Ke4!
    • 1.Qf4?
      • threat
        • 2.Qf5#
      • 1...Kc5
        • 2.Qxd6#
        • 2.Qxc4#
        • 2.Qd4#
      • 1...Ke6
        • 2.Qe5#
        • 2.Qe4#
        • 2.Qf7#
      • 1...cxb3!
    • 1.Qh1+?
      • 1...Ke6
        • 2.Qe4#
      • 1...Kc5!
    • 1.Qf2?
      • threat
        • 2.Qf5#
      • 1...Kc5
        • 2.e4#
      • 1...Ke6
        • 2.Qf7#
      • 1...cxb3!
    • 1.Qg2+?
      • 1...Ke6
        • 2.Qe4#
      • 1...Kc5!
    • 1.Qh5+?
      • 1...Ke6
        • 2.Qe5#
      • 1...Sg5!
    • 1.e4+?
      • 1...Kc5
        • 2.Qg1#
        • 2.Qxd6#
        • 2.Qf2#
      • 1...Ke6
        • 2.Qe5#
      • 1...Kd4!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qf5#
      • 1...Kc5
        • 2.Qxc4#
      • 1...Ke6
        • 2.Qe4#
      • 1...cxb3
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(e);P-FLIGHT,S_CUTB(c)::QAB1(A),XP(f)
    • K(e);P_SPINP(f),S_FLIGHT::QAR1(A)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • K(e);N_GUARD,P-FLIGHT::QAB1(A),XP(f)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Refutation
        • P(d);XP(B)
    • Try
      • Q(A);CHECK
      • Vars
        • K(e);N_GUARD,P_SPINP(f),S_FLIGHT::QAR2(A)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • K(e);N_GUARD,P-FLIGHT::QAB(A)+P(C)
        • K(e);N_GUARD,P_SPINP(f),S_FLIGHT::QAB1(A)
      • Refutation
        • P(d);XP(B)
    • Try
      • Q(A);CHECK
      • Vars
        • K(e);N_GUARD,P_SPINP(f),S_FLIGHT::QAR2(A)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(e);P_SPINP(f),S_FLIGHT::QAR1(A)
      • Refutation
        • S(j);P_SPINS(j)
    • Try
      • P(C);CHECK
      • Vars
        • K(e);P_SPINP(f),S_FLIGHT::QAR1(A)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • K(e);P-FLIGHT,P_SPINP(d),S_CUTR(h)::QAR1(A),XP(d)
      • K(e);N_GUARD,P_SPINP(f),S_FLIGHT::QAR2(A)
      • P(d);XP(B)::B(F)
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