MESON Chess Problem Database

Problem Display
PID: 172428 (8/5P2/3Q2p1/5k2/7p/4K2p/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1997

8/5P2/3Q2p1/5k2/7p/4K2p/8/8

#2

3 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kg4
      • 2.Qxg6#
  • Tries
    • 1.Qd5+?
      • 1...Kf6
        • 2.f8Q#
      • 1...Kg4!
    • 1.Qf6+?
      • 1...Kg4
        • 2.Qxg6#
      • 1...Kxf6!
    • 1.f8Q+?
      • 1...Kg4
        • 2.Qxg6#
      • 1...Kg5!
    • 1.f8R+?
      • 1...Kg4
        • 2.Qxg6#
      • 1...Kg5!
  • Keys
    • 1.f8S!
      • threat
        • 2.Qf4#
      • 1...Kg4
        • 2.Qxg6#
      • 1...Kg5
        • 2.Qxg6#
      • 1...g5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAR2(B),XP(d)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);P-FLIGHT::P=Q
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR2(B),XP(d)
      • Refutation
        • K(c);P-FLIGHT,XQ(B)
    • Try
      • P(C);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR2(B),XP(d)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • P(C);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR2(B),XP(d)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • P(C);
    • Threat
      • QAR1(B)
    • Vars
      • K(c);S_FLIGHT::QAR2(B),XP(d)
      • K(c);P-FLIGHT::QAR1(B),XP(d)
      • P(d);SBLOCK::QAB1(B)
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Developed and maintained by Brian Stephenson.
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