MESON Chess Problem Database

Problem Display
PID: 160664 (8/8/8/3N4/8/p1Q5/pP2K3/1k6 w - - 0 1)

Andreev, Aleksandr Grigorevich

Bankovskaya gazeta, 1996

8/8/8/3N4/8/p1Q5/pP2K3/1k6

#2

4 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Ka1
      • 2.Qc1#
  • Tries
    • 1.Sb4?
      • 1...Ka1
        • 2.Qc1#
      • 1...axb2
        • 2.Qe1#
      • 1...a1Q
        • 2.Qc2#
      • 1...a1B
        • 2.Qc2#
      • 1...a1R
        • 2.Qc2#
      • 1...a1S!
    • 1.Qc2+?
      • 1...Ka1
        • 2.Qc1#
      • 1...Kxc2!
  • Keys
    • 1.Qd2!
      • 1...Ka1
        • 2.Qc1#
      • 1...axb2
        • 2.Qd1#
      • 1...a1Q
        • 2.Sc3#
      • 1...a1S
        • 2.Sc3#
      • 1...a1B
        • 2.Sc3#
      • 1...a1R
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR2(C)
  • Tries
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
        • P(c);SBLOCK,XP(A)::QAR(C)
        • P(b);SBLOCK::QAB1(C)
      • Refutation
        • P(b);
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT::QAR2(C)
      • P(c);SBLOCK,XP(A)::QAR2(C)
      • P(b);SBLOCK::S(D)
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