MESON Chess Problem Database

Problem Display
PID: 178200 (6Q1/8/p7/3N4/k1K5/8/n7/8 w - - 0 1)

Vitanovski, Borislav

Vratnica-64, 2001

6Q1/8/p7/3N4/k1K5/8/n7/8

#2

3 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qb8?
      • 1...Ka3
        • 2.Qb3#
      • 1...Sc1
        • 2.Qb4#
      • 1...Sc3
        • 2.Qb4#
      • 1...Sb4
        • 2.Qxb4#
      • 1...a5
        • 2.Qb3#
      • 1...Ka5!
  • Keys
    • 1.Qf8!
      • 1...Ka5
        • 2.Qa3#
      • 1...Sb4
        • 2.Qxb4#
      • 1...Sc1
        • 2.Qb4#
      • 1...Sc3
        • 2.Qb4#
      • 1...a5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
        • S(a);N_GUARD::QAR1(C)
        • S(a);N_GUARD::QAR1(C),XS(a)
        • P(c);SBLOCK::QAB1(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(b);P-FLIGHT::QAR2(C)
      • S(a);N_GUARD::QAR1(C),XS(a)
      • S(a);N_GUARD::QAR1(C)
      • P(c);SBLOCK::S(B)
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