MESON Chess Problem Database

Problem Display
PID: 42537 (8/2p1k3/6K1/4PR2/8/8/8/3Q4 w - - 0 1)

Zimmer, Eligiusz

1st Comm., Problem Observer, 2002

8/2p1k3/6K1/4PR2/8/8/8/3Q4

#2

4 + 2

5454 Near Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rf7+?
      • 1...Ke8
        • 2.Qd7#
      • 1...Ke6!
    • 1.Qd6+?
      • 1...Ke8
        • 2.Rf8#
      • 1...cxd6!
    • 1.e6?
      • threat
        • 2.Qd7#
      • 1...Ke8
        • 2.Qd7#
      • 1...Kxe6!
  • Keys
    • 1.Rf8!
      • 1...Ke6
        • 2.Re8#
      • 1...Kxf8
        • 2.Qd8#
      • 1...c5
        • 2.Qd6#
      • 1...c6
        • 2.Qd6#

Anticipated by 77625(1938)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::R1(C)
      • Refutation
        • P(a);XQ(A)
    • Try
      • P(B);
      • Threat
        • QAR1(A)
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT,XP(B)
  • Actual
    • R(C);
    • Vars
      • K(b);P-FLIGHT::R(C)
      • K(b);S_FLIGHT,XR(C)::QAR2(A)
      • P(a);N_GUARD::QAB1(A)
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