MESON Chess Problem Database

Problem Display
PID: 213502 (8/8/P7/8/k1K2Q2/8/n7/8 w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1973

8/8/P7/8/k1K2Q2/8/n7/8

#2

3 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qd6?
      • 1...Sb4
        • 2.Qxb4#
      • 1...Sc1
        • 2.Qb4#
      • 1...Sc3
        • 2.Qb4#
      • 1...Ka5!
    • 1.Qf8?
      • 1...Sb4
        • 2.Qxb4#
      • 1...Sc1
        • 2.Qb4#
      • 1...Sc3
        • 2.Qb4#
      • 1...Ka5!
  • Keys
    • 1.Qb8!
      • 1...Ka3
        • 2.Qb3#
      • 1...Ka5
        • 2.Qb5#
      • 1...Sc1
        • 2.Qb4#
      • 1...Sc3
        • 2.Qb4#
      • 1...Sb4
        • 2.Qxb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Vars
        • S(a);N_GUARD::QAR1(B),XS(a)
        • S(a);N_GUARD::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • S(a);N_GUARD::QAR1(B),XS(a)
        • S(a);N_GUARD::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(b);P-FLIGHT::QAR1(B)
      • S(a);N_GUARD::QAR1(B)
      • S(a);N_GUARD::QAR1(B),XS(a)
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