MESON Chess Problem Database

Problem Display
PID: 172340 (5B2/6bp/6kP/8/6K1/8/3Q4/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Vecherni Krasnodar, 1996

5B2/6bp/6kP/8/6K1/8/3Q4/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qc2+?
      • 1...Kf6
        • 2.Qf5#
      • 1...Kxh6
        • 2.Qc6#
      • 1...Kf7!
    • 1.Qd3+?
      • 1...Kf6
        • 2.Qf5#
      • 1...Kxh6
        • 2.Qa6#
        • 2.Qd6#
      • 1...Kf7!
    • 1.Qd5?
      • 1...Kf6
        • 2.Qf5#
      • 1...Kxh6
        • 2.Qc6#
        • 2.Qe6#
        • 2.Qg5#
        • 2.Qh5#
        • 2.Qd6#
      • 1...Bxh6
        • 2.Qe6#
        • 2.Qf5#
      • 1...Bxf8
        • 2.Qe6#
      • 1...Ba1
        • 2.Qf5#
      • 1...Bb2
        • 2.Qf5#
      • 1...Bc3
        • 2.Qf5#
      • 1...Bd4
        • 2.Qf5#
      • 1...Bf6
        • 2.Qh5#
      • 1...Bh8
        • 2.Qf5#
      • 1...Be5!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qxg7#
      • 1...Kf6
        • 2.Qf5#
      • 1...Kxh6
        • 2.Qc6#
        • 2.Qe6#
        • 2.Qd6#
        • 2.Qxg7#
      • 1...Bxh6
        • 2.Qf5#
        • 2.Qe6#
      • 1...Bxf8
        • 2.Qe6#
      • 1...Bf6
        • 2.Qe8#
      • 1...Ba1
        • 2.Qf5#
      • 1...Bb2
        • 2.Qf5#
      • 1...Bc3
        • 2.Qf5#
      • 1...Bd4
        • 2.Qf5#
      • 1...Be5
        • 2.Qf5#
      • 1...Bh8
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • K(a);P-FLIGHT,P_SPINB(b),XP(C)::QAR(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • B(b);N_GUARD,XB(D)::QAR2(A)
        • B(b);::QAB1(A)
        • B(b);SBLOCK::QAB1(A)
      • Refutation
        • B(b);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XB(b)
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • B(b);N_GUARD,XB(D)::QAR2(A)
      • B(b);SBLOCK::QAB(A)
      • B(b);::QAB1(A)
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