MESON Chess Problem Database

Problem Display
PID: 162287 (2K1R3/2Qp4/B7/3k4/b6r/3P4/8/b7 w - - 0 1)

Thomas, Georg

Problemnoter, 1957

2K1R3/2Qp4/B7/3k4/b6r/3P4/8/b7

#2

5 + 5

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qe5#
      • 2.Qc4#
    • 1...Rd4
      • 2.Re5#
    • 1...Bd4
      • 2.Bc4#
  • Tries
    • 1.Bc4+?
      • 1...Kd4
        • 2.Qe5#
      • 1...Rxc4!
    • 1.Bb7+?
      • 1...Kd4
        • 2.Qc4#
      • 1...Bc6!
    • 1.Re5+?
      • 1...Kd4
        • 2.Qc5#
      • 1...Bxe5!
  • Keys
    • 1.d4!
      • threat
        • 2.Qc5#
      • 1...Kxd4
        • 2.Qe5#
        • 2.Qc4#
      • 1...Rxd4
        • 2.Re5#
      • 1...Bxd4
        • 2.Bc4#
      • 1...Bc6
        • 2.Qe5#
      • 1...d6
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(c);SBLOCK,S_CUTB(a)::R1(E)
    • B(a);SBLOCK,S_CUTR(c)::B(B)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(d);P-FLIGHT::QAB1(C)
      • Refutation
        • R(c);P_PINQ(C),XB(B)
    • Try
      • B(B);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(C)
      • Refutation
        • B(b);P_SPINB(b)
    • Try
      • R(E);CHECK
      • Vars
        • K(d);P-FLIGHT::QAB1(C)
      • Refutation
        • B(a);XR(E)
  • Actual
    • P(A);
    • Threat
      • QAR1(C)
    • Vars
      • R(c);SBLOCK,XP(A)::R1(E)
      • B(a);SBLOCK,XP(A)::B(B)
      • B(b);SBLOCK::QAR1(C)
      • P(e);SBLOCK::QAB1(C)
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