MESON Chess Problem Database

Problem Display
PID: 76387 (8/8/7R/8/4Pkn1/2N3R1/3K4/Q3N3 w - - 0 1)

Gunning, Rev P

The Tablet, 1927

(First published on Sat Sep 24 1927)

8/8/7R/8/4Pkn1/2N3R1/3K4/Q3N3

#2

7 + 2

15239 Valois Notebooks 2014
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Se2+?
      • 1...Kg5
        • 2.Qf6#
        • 2.Qg7#
      • 1...Kxe4!
    • 1.Rxg4+?
      • 1...Ke5
        • 2.Sf3#
        • 2.Sb1#
        • 2.Sd1#
        • 2.Sa2#
        • 2.Se2#
        • 2.Sa4#
        • 2.Sb5#
        • 2.Sd5#
      • 1...Kxg4!
  • Keys
    • 1.Qa7!
      • 1...Kxg3
        • 2.Se2#
      • 1...Ke5
        • 2.Sd3#
      • 1...Kg5
        • 2.Qe3#
      • 1...Sxh6
        • 2.Qb8#
        • 2.Qc7#
      • 1...Se5
        • 2.Qe3#
      • 1...Sf2
        • 2.Qb8#
        • 2.Qc7#
      • 1...Sh2
        • 2.Qb8#
        • 2.Qc7#
      • 1...Se3
        • 2.Qb8#
        • 2.Qc7#
      • 1...Sf6
        • 2.Qb8#
        • 2.Qc7#

Anticipated by 203481(1924)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • K(a);P-FLIGHT,XP(F)
    • Try
      • R(E);CHECK,XS(b)
      • Refutation
        • K(a);P-FLIGHT,XR(E)
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT,XR(E)::S(D)
      • K(a);S_FLIGHT::S(B)
      • K(a);P_SPINS(b),S_FLIGHT::QAB(A)
      • S(b);N_GUARD,SBLOCK::QAB1(A)
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