MESON Chess Problem Database

Problem Display
PID: 991 (6r1/7Q/8/b1B5/2p5/5B2/K2p2p1/5k2 w - - 0 1)

Backe, Espen

The Problemist Supplement, 1996

6r1/7Q/8/b1B5/2p5/5B2/K2p2p1/5k2

#2

4 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Qc2?
      • threat
        • 2.Qd1#
      • 1...Ke1
        • 2.Qd1#
      • 1...d1Q
        • 2.Qf2#
      • 1...d1S
        • 2.Qe2#
      • 1...d1B
        • 2.Qf2#
      • 1...d1R
        • 2.Qe2#
        • 2.Qf2#
      • 1...Re8!
    • 1.Qd3+?
      • 1...Ke1
        • 2.Qe2#
      • 1...cxd3!
  • Keys
    • 1.Qh2!
      • threat
        • 2.Qg1#
      • 1...Ke1
        • 2.Qg1#
      • 1...g1Q
        • 2.Qe2#
      • 1...g1S
        • 2.Qf2#
      • 1...g1B
        • 2.Qe2#
      • 1...g1R
        • 2.Qe2#
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAR2(D)
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
        • P(b);OGATE::QAR1(D)
        • P(b);OGATE::QAB1(D)
      • Refutation
        • R(f);
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • P(d);XQ(D)
  • Actual
    • Q(D);
    • Threat
      • QAR1(D)
    • Vars
      • K(a);P-FLIGHT::QAR2(D)
      • P(c);OGATE::QAB1(D)
      • P(c);OGATE::QAR1(D)
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