MESON Chess Problem Database

Problem Display
PID: 274149 (5R2/8/1Q2K1kb/8/8/6pR/8/8 w - - 0 1)

Zimmer, Eligiusz

Buletin Problemistic, 2002

5R2/8/1Q2K1kb/8/8/6pR/8/8

#2

4 + 3

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Rg8#
    • 1...Bd2
      • 2.Rg8#
    • 1...Be3
      • 2.Rg8#
    • 1...Bf4
      • 2.Rg8#
    • 1...Bg5
      • 2.Rg8#
  • Tries
    • 1.Kd5+?
      • 1...Kg7
        • 2.Qxh6#
      • 1...Kh7
        • 2.Qxh6#
      • 1...Kg5!
    • 1.Ke5+?
      • 1...Kg7
        • 2.Qxh6#
      • 1...Kh7
        • 2.Qxh6#
      • 1...Kg5!
    • 1.Kd7+?
      • 1...Kg7
        • 2.Qxh6#
      • 1...Kh7
        • 2.Qxh6#
      • 1...Kg5!
    • 1.Ke7+?
      • 1...Kg7
        • 2.Qxh6#
      • 1...Kh7
        • 2.Qxh6#
      • 1...Kg5!
    • 1.Qc7?
      • 1...Kg5
        • 2.Qxg3#
      • 1...Bxf8
        • 2.Qxg3#
      • 1...Bc1
        • 2.Rg8#
      • 1...Bd2
        • 2.Rg8#
      • 1...Be3
        • 2.Rg8#
      • 1...Bf4
        • 2.Rg8#
      • 1...Bg5
        • 2.Rg8#
        • 2.Qf7#
        • 2.Qh7#
      • 1...Bg7
        • 2.Qxg3#
      • 1...g2!
    • 1.Qb1+?
      • 1...Kg5
        • 2.Qf5#
      • 1...Kg7!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qxh6#
      • 1...Kg7
        • 2.Qxh6#
      • 1...Kh7
        • 2.Qxh6#
      • 1...Bxe3
        • 2.Rg8#
      • 1...Bxf8
        • 2.Qxg3#
      • 1...Bf4
        • 2.Rg8#
      • 1...Bg5
        • 2.Rg8#
      • 1...Bg7
        • 2.Qxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(c);N_GUARD::R(D)
    • B(c);N_GUARD,SBLOCK::R(D)
  • Tries
    • Try
      • K(C);CHECK,S_FLIGHT
      • Vars
        • K(b);OGATE,P-FLIGHT::QAB1(B),XB(c)
        • K(b);OGATE,P_SPINB(c),S_FLIGHT::QAR1(B),XB(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(C);CHECK,P-FLIGHT
      • Vars
        • K(b);OGATE,P-FLIGHT::QAB1(B),XB(c)
        • K(b);OGATE,P_SPINB(c),S_FLIGHT::QAR1(B),XB(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(C);CHECK,S_FLIGHT
      • Vars
        • K(b);OGATE,P-FLIGHT::QAB1(B),XB(c)
        • K(b);OGATE,P_SPINB(c),S_FLIGHT::QAR1(B),XB(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(C);CHECK,P-FLIGHT
      • Vars
        • K(b);OGATE,P-FLIGHT::QAB1(B),XB(c)
        • K(b);OGATE,P_SPINB(c),S_FLIGHT::QAR1(B),XB(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(b);N_GUARD,P-FLIGHT,S_CUTB(c)::QAR2(B),XP(a)
        • B(c);N_GUARD,XR(D)::QAR(B),XP(a)
        • B(c);N_GUARD::R(D)
        • B(c);N_GUARD,SBLOCK::QAR(B),XP(a)
      • Refutation
        • P(a);
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);N_GUARD,P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(B);
    • Threat
      • QAR1(B),XB(c)
    • Vars
      • K(b);P-FLIGHT::QAB1(B),XB(c)
      • K(b);P_SPINB(c),S_FLIGHT::QAR1(B),XB(c)
      • B(c);N_GUARD,XQ(B)::R(D)
      • B(c);N_GUARD,XR(D)::QAR(B),XP(a)
      • B(c);N_GUARD::R(D)
      • B(c);N_GUARD,SBLOCK::QAR(B),XP(a)
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