MESON Chess Problem Database

Problem Display
PID: 156914 (8/3K4/7B/8/6kp/3Q4/4P2n/8 w - - 0 1)

Achmedlia, A

Baku, 1974

8/3K4/7B/8/6kp/3Q4/4P2n/8

#2

4 + 3

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Sf1
      • 2.Qf3#
    • 1...Sf3
      • 2.Qxf3#
  • Tries
    • 1.Bc1?
      • 1...Kh5
        • 2.Qf5#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sf1
        • 2.Qf3#
      • 1...h3!
    • 1.Bd2?
      • 1...Kh5
        • 2.Qf5#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sf1
        • 2.Qf3#
      • 1...h3!
  • Keys
    • 1.Qe3!
      • 1...Kf5
        • 2.Qe6#
      • 1...Kh5
        • 2.Qg5#
      • 1...Sf3
        • 2.Qxf3#
      • 1...h3
        • 2.Qg5#
      • 1...Sf1
        • 2.Qf3#

FEATURES

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