MESON Chess Problem Database

Problem Display
PID: 10933 (8/8/6p1/6B1/4Kp2/5Q2/5N2/5k2 w - - 0 1)

Backe, Odd Erik

Tidskrift for Schack, 1969

8/8/6p1/6B1/4Kp2/5Q2/5N2/5k2

#2

4 + 3

4884 154 norske miniatyrproblemer 1974
2012 Miniature Chess Problems from Many Countries 1981
5454 Near Snap 2020
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Kd3?
      • 1...Ke1
        • 2.Qe2#
      • 1...Kg1!
    • 1.Bxf4?
      • 1...Ke1
        • 2.Sd3#
      • 1...Kg1
        • 2.Sh3#
      • 1...g5!
  • Keys
    • 1.Bh4!
      • threat
        • 2.Sh3#
      • 1...Ke1
        • 2.Qd1#
      • 1...Kg1
        • 2.Qh1#

This anticipates 241706(2009), 208926(2015)

There are these versions: 203742

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(D);XP(b)
      • Vars
        • K(a);P-FLIGHT::S(A)
      • Refutation
        • P(c);
  • Actual
    • B(D);
    • Threat
      • QAR(B)+S(A)
    • Vars
      • K(a);P-FLIGHT::QAR1(B)
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