MESON Chess Problem Database

Problem Display
PID: 263043 (8/4Q3/8/8/2kN1N2/6p1/8/B4K2 w - - 0 1)

Muller, Dieter

SuperProblem, 2014

8/4Q3/8/8/2kN1N2/6p1/8/B4K2

#2

5 + 2

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3?
      • 1...Kxd3
        • 2.Qe2#
      • 1...Kd5
        • 2.Qe6#
      • 1...g2+!
    • 1.Qe6+?
      • 1...Kc5
        • 2.Sd3#
      • 1...Kb4!
  • Keys
    • 1.Sg2!
      • 1...Kd3
        • 2.Qe2#
      • 1...Kd5
        • 2.Se3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(D)::QAB1(E)
        • K(b);N_GUARD,S_FLIGHT::QAB1(E)
      • Refutation
        • P(a);CHECK
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);N_GUARD,P-FLIGHT::S(D)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(b);N_GUARD,S_FLIGHT::QAB1(E)
      • K(b);N_GUARD,S_FLIGHT::S(D)
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