MESON Chess Problem Database

Problem Display
PID: 80944 (8/3K1Q2/N7/4p3/3k4/8/4P3/4B3 w - - 0 1)

Asov, Aleksei

Hlas l'udu, 1992

8/3K1Q2/N7/4p3/3k4/8/4P3/4B3

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Bf2+?
      • 1...Ke4
        • 2.Sc5#
        • 2.Qf3#
      • 1...Kc3!
    • 1.Bc3+?
      • 1...Ke3
        • 2.Qf3#
      • 1...Ke4
        • 2.Qf3#
      • 1...Kxc3!
    • 1.Qd5+?
      • 1...Ke3
        • 2.Qxe5#
      • 1...Kxd5!
    • 1.Qf3?
      • threat
        • 2.Qd3#
      • 1...Kc4
        • 2.Qd3#
      • 1...e4!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qd3#
      • 1...Ke3
        • 2.Qxe5#
      • 1...Kc4
        • 2.Qd3#
      • 1...Kd5
        • 2.Qd3#
      • 1...e4
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(E)
        • K(a);P-FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT,XB(A)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(E),XP(b)
      • Refutation
        • K(a);P-FLIGHT,XQ(E)
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • K(a);P-FLIGHT::QAB1(E)
      • Refutation
        • P(b);
  • Actual
    • Q(E);
    • Threat
      • QAR1(E)
    • Vars
      • K(a);S_FLIGHT::QAR2(E),XP(b)
      • K(a);P-FLIGHT::QAB1(E)
      • K(a);P-FLIGHT,P_SPINP(b)::QAR2(E)
      • P(b);OGATE,SBLOCK::QAB1(E)
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