MESON Chess Problem Database

Problem Display
PID: 249664 (1B3K2/2b2pp1/3P1R2/r3kP1R/1Q2p3/4N3/2b1N3/q7 w - - 0 1)

Binder, Friedrich

Schach-Aktiv, 1994

1B3K2/2b2pp1/3P1R2/r3kP1R/1Q2p3/4N3/2b1N3/q7

#2

9 + 8

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf6
      • 2.Sg4#
    • 1...Qb2
      • 2.Qxb2#
    • 1...Qc3
      • 2.Qxc3#
    • 1...Qd4
      • 2.Qxd4#
    • 1...Qb1
      • 2.Qc3#
      • 2.Qd4#
    • 1...Qc1
      • 2.Qc3#
      • 2.Qd4#
    • 1...Qe1
      • 2.Qd4#
    • 1...Qf1
      • 2.Qc3#
      • 2.Qb2#
      • 2.Qd4#
    • 1...Qg1
      • 2.Qc3#
      • 2.Qb2#
      • 2.Qd4#
    • 1...Qh1
      • 2.Qc3#
      • 2.Qb2#
      • 2.Qd4#
    • 1...Qa2
      • 2.Qc3#
      • 2.Qd4#
    • 1...Qa3
      • 2.Qd4#
    • 1...Rd5
      • 2.Sg4#
    • 1...Bxd6+
      • 2.Qxd6#
  • Tries
    • 1.Qd2?
      • threat
        • 2.Sg4#
      • 1...Bxd6+
        • 2.Qxd6#
      • 1...Kxf6
        • 2.Sg4#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Qg1
        • 2.Qc3#
        • 2.Qd4#
      • 1...Bd3!
    • 1.Qc5+?
      • 1...Kxf6
        • 2.Sg4#
      • 1...Rxc5!
    • 1.Qb5+?
      • 1...Kxf6
        • 2.Sg4#
      • 1...Rxb5!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Sg4#
      • 1...Bxd6+
        • 2.Qe7#
      • 1...Kxf6
        • 2.Sg4#
      • 1...gxf6
        • 2.Sc4#
      • 1...Qg1
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • K(e);S_FLIGHT,XR(G)::S(B)
    • Q(a);N_GUARD::QAB(C),XQ(a)
    • Q(a);N_GUARD::QAB1(C),XQ(a)
    • Q(a);N_GUARD::QAB1(C)
    • R(d);SBLOCK::S(B)
    • B(f);CHECK,OGATE,P_SPINB(f),XP(F)::QAB1(C),XB(f)
  • Tries
    • Try
      • Q(C);
      • Threat
        • S(B)
      • Vars
        • B(f);CHECK,OGATE,P_SPINB(f),XP(F)::QAB1(C),XB(f)
        • K(e);S_FLIGHT,XR(G)::S(B)
        • Q(a);N_GUARD::QAB1(C),XQ(a)
      • Refutation
        • B(b);
    • Try
      • Q(C);CHECK
      • Vars
        • K(e);S_FLIGHT,XR(G)::S(B)
      • Refutation
        • R(d);XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(e);S_FLIGHT,XR(G)::S(B)
      • Refutation
        • R(d);XQ(C)
  • Actual
    • Q(C);
    • Threat
      • S(B)
    • Vars
      • B(f);CHECK,OGATE,P_SPINB(f),XP(F)::QAR2(C)
      • K(e);S_FLIGHT,XR(G)::S(B)
      • P(h);SBLOCK,XR(G)::S(B)
      • Q(a);N_GUARD::QAB(C)
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