MESON Chess Problem Database

Problem Display
PID: 80734 (2N5/4K3/8/1Bk5/8/2P5/6b1/3Q4 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

The Problemist, 1989

2N5/4K3/8/1Bk5/8/2P5/6b1/3Q4

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Qh5#
  • Tries
    • 1.Sa7?
      • threat
        • 2.Qd4#
        • 2.Qd6#
      • 1...Bd5
        • 2.Qg1#
        • 2.Qd4#
      • 1...Bc6
        • 2.Qd4#
      • 1...Kb6!
    • 1.Ba6?
      • threat
        • 2.Qd6#
      • 1...Kc6
        • 2.Qd6#
      • 1...Bd5!
    • 1.Qb3?
      • threat
        • 2.Qc4#
      • 1...Bd5
        • 2.Qb4#
      • 1...Bf1!
    • 1.Qa4?
      • threat
        • 2.Qc4#
      • 1...Kd5
        • 2.Qd4#
      • 1...Bd5
        • 2.Qb4#
      • 1...Bf1!
    • 1.Qg1+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Kxb5!
    • 1.Qd3?
      • threat
        • 2.Qc4#
      • 1...Bf1
        • 2.Qf5#
      • 1...Bd5!
  • Keys
    • 1.Ba4!
      • threat
        • 2.Qd4#
      • 1...Kc4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::QAR(A)
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(C);
      • Threat
        • QAB1(A)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
      • Refutation
        • B(a);
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • B(a);SBLOCK::QAB1(A)
      • Refutation
        • B(a);
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • B(a);SBLOCK::QAB1(A)
      • Refutation
        • B(a);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,XB(C)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • B(a);N_GUARD::QAR(A)
      • Refutation
        • B(a);
  • Actual
    • B(C);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);P-FLIGHT::QAR1(A)
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