MESON Chess Problem Database

Problem Display
PID: 157463 (8/8/3p4/3K4/4R1p1/5k2/8/6Qb w - - 0 1)

Hildebrand, Alexander

Stockholms Tidningen, 1946

8/8/3p4/3K4/4R1p1/5k2/8/6Qb

#2

3 + 4

15148 Sadier Collection 2016
3713 Snap 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Qe3#
    • 1...g3
      • 2.Qf1#
  • Tries
    • 1.Kd4?
      • 1...Bg2
        • 2.Qe3#
      • 1...g3
        • 2.Qf1#
      • 1...d5!
    • 1.Qe1?
      • 1...g3
        • 2.Qf1#
        • 2.Qe2#
      • 1...Bg2
        • 2.Qe3#
      • 1...Kg2!
  • Keys
    • 1.Qh2!
      • 1...Bg2
        • 2.Qf4#
      • 1...g3
        • 2.Qe2#

This anticipates 274774(1957)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::QAR1(A)
    • P(c);SBLOCK::QAR2(A)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • B(a);SBLOCK::QAR1(A)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • P(d);
    • Try
      • Q(A);
      • Vars
        • B(a);SBLOCK::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • B(a);SBLOCK::QAR1(A)
      • P(c);SBLOCK::QAB1(A)
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