MESON Chess Problem Database

Problem Display
PID: 46898 (8/2b2K2/2p3N1/3kP3/3p4/Q1pP1P2/8/4r3 w - - 0 1)

Eszlinger, Josef

1st Prize, DSV der DDR, 1982

8/2b2K2/2p3N1/3kP3/3p4/Q1pP1P2/8/4r3

#2

6 + 6

102 Probleemblad 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.fxe4#
    • 1...Rxe5
      • 2.Sf4#
    • 1...Ba5
      • 2.Qd6#
    • 1...Bxe5
      • 2.Se7#
    • 1...Bb6
      • 2.Qd6#
    • 1...Bd6
      • 2.Qxd6#
    • 1...Bd8
      • 2.Qd6#
    • 1...c5
      • 2.Qa8#
  • Tries
    • 1.Qe7?
      • threat
        • 2.Sf4#
      • 1...Bd6
        • 2.Qxd6#
      • 1...c5
        • 2.Qe6#
      • 1...Re4
        • 2.fxe4#
      • 1...Bxe5!
    • 1.Qa5+?
      • 1...c5
        • 2.Qa8#
      • 1...Bxa5!
    • 1.f4?
      • threat
        • 2.Se7#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Bd8
        • 2.Qd6#
      • 1...Rxe5!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Qc4#
      • 1...Rxe5
        • 2.Sf4#
      • 1...Bxe5
        • 2.Se7#
      • 1...c5
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • R(a);OGATE::P(C),XR(a)
    • R(a);SBLOCK,XP(D)::S(E)
    • B(f);N_GUARD::QAR1(A)
    • B(f);SBLOCK,XP(D)::S(E)
    • B(f);N_GUARD::QAR1(A),XB(f)
    • P(e);OGATEB,SBLOCK::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • S(E)
      • Vars
        • B(f);N_GUARD::QAR1(A),XB(f)
        • P(e);SBLOCK::QAB1(A)
        • R(a);OGATE::P(C),XR(a)
      • Refutation
        • B(f);XP(D)
    • Try
      • Q(A);CHECK
      • Vars
        • P(e);OGATEB,P_SPINP(e),SBLOCK::QAB(A)
      • Refutation
        • B(f);XQ(A)
    • Try
      • P(C);
      • Threat
        • S(E)
      • Vars
        • B(f);N_GUARD::QAR1(A),XB(f)
        • B(f);N_GUARD::QAR1(A)
      • Refutation
        • R(a);XP(D)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • R(a);SBLOCK,XP(D)::S(E)
      • B(f);SBLOCK,XP(D)::S(E)
      • P(e);OGATEB,SBLOCK::QAB(A)
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