MESON Chess Problem Database

Problem Display
PID: 156407 (8/n4bN1/5p2/4k3/5N2/3Q4/5K2/8 w - - 0 1)

Packer, GFH

Illustrated London News, 1905

(First published on Sat Sep 30 1905)

8/n4bN1/5p2/4k3/5N2/3Q4/5K2/8

#2

4 + 4

15351 SCPF/BCPS Black Books 2016
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf4
      • 2.Qf5#
    • 1...Ba2
      • 2.Sg6#
    • 1...Bb3
      • 2.Sg6#
    • 1...Bc4
      • 2.Sg6#
    • 1...Be6
      • 2.Sg6#
    • 1...Bg6
      • 2.Sxg6#
    • 1...Bg8
      • 2.Sg6#
  • Tries
    • 1.Qd5+?
      • 1...Kxf4
        • 2.Qf5#
      • 1...Bxd5!
  • Keys
    • 1.Sge6!
      • threat
        • 2.Qd5#
      • 1...Bxe6
        • 2.Sg6#
      • 1...f5
        • 2.Qd4#

This anticipates 171453(1998)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • K(a);S_FLIGHT,XS(C)::QAR1(B)
    • B(d);N_GUARD::S(C)
    • B(d);N_GUARD::S(C),XB(d)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(C)::QAR1(B)
      • Refutation
        • B(d);XQ(B)
  • Actual
    • S(D);
    • Threat
      • QAR1(B)
    • Vars
      • B(d);N_GUARD,SBLOCK,XS(D)::S(C)
      • P(b);SBLOCK::QAB1(B)
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