MESON Chess Problem Database

Problem Display
PID: 246677 (8/8/1NR5/8/8/kp1KQ3/N7/8 w - - 0 1)

Murashev, Pavel Aleksandrovich

Moscow Ty., 2015

8/8/1NR5/8/8/kp1KQ3/N7/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sc1?
      • 1...Kb4
        • 2.Qc5#
      • 1...b2
        • 2.Kc4#
        • 2.Qc5#
        • 2.Qe7#
      • 1...Kb2!
    • 1.Qd2?
      • 1...bxa2
        • 2.Qc3#
      • 1...b2!
    • 1.Qd4?
      • 1...bxa2
        • 2.Qc3#
      • 1...b2
        • 2.Qa4#
      • 1...Kxa2!
  • Keys
    • 1.Sb4!
      • 1...Kb2
        • 2.Qc1#
      • 1...Kxb4
        • 2.Qc5#
      • 1...b2
        • 2.Kc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • P(b);OGATEB,SBLOCK,XS(A)::QAR2(C)
      • Refutation
        • P(b);
    • Try
      • Q(C);
      • Vars
        • P(b);OGATEB,SBLOCK,XS(A)::QAR2(C)
        • P(b);SBLOCK::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT,XS(A)
  • Actual
    • S(A);
    • Vars
      • K(a);S_FLIGHT::QAB1(C)
      • K(a);OGATEB,S_FLIGHT,XS(A)::QAB1(C)
      • P(b);SBLOCK::QAR(C)+K(B)
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