MESON Chess Problem Database

Problem Display
PID: 172423 (8/2ppP3/K1k5/4Q3/8/8/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1997

8/2ppP3/K1k5/4Q3/8/8/8/8

#2

3 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...d6
      • 2.Qb5#
      • 2.e8Q#
      • 2.e8B#
  • Tries
    • 1.Ka7?
      • 1...d6
        • 2.e8Q#
        • 2.e8B#
      • 1...d5!
    • 1.Qd4?
      • 1...d6
        • 2.e8Q#
        • 2.e8B#
      • 1...d5!
    • 1.e8R?
      • 1...d6
        • 2.Qb5#
      • 1...d5!
  • Keys
    • 1.e8S!
      • threat
        • 2.Qb5#
      • 1...d5
        • 2.Qxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(c);::P=Q
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Vars
        • P(c);::P=Q
      • Refutation
        • P(c);
    • Try
      • P(C);
      • Vars
        • P(c);SBLOCK::QAB1(A)
      • Refutation
        • P(c);
  • Actual
    • P(C);
    • Threat
      • QAB1(A)
    • Vars
      • P(c);SBLOCK::QAR1(A),XP(b)
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