MESON Chess Problem Database

Problem Display
PID: 226804 (8/6p1/3Q4/8/8/4n1R1/8/2K4k w - - 0 1)

Junker, Karl

Deutsche Schachzeitung, 1974

8/6p1/3Q4/8/8/4n1R1/8/2K4k

#2

3 + 3

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...g5
      • 2.Qh6#
  • Keys
    • 1.Qd4!
      • threat
        • 2.Qh4#
      • 1...Kh2
        • 2.Qh4#
      • 1...Sf1
        • 2.Qg1#
      • 1...Sg2
        • 2.Rh3#
      • 1...Sg4
        • 2.Qg1#
      • 1...Sf5
        • 2.Qg1#
      • 1...g5
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::QAR(C)
  • Actual
    • Q(C);
    • Threat
      • QAR(C)
    • Vars
      • K(a);P-FLIGHT::QAR2(C)
      • S(b);OGATE::QAR1(C)
      • S(b);SBLOCK::R(B)
      • P(c);OGATE::QAB(C)
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