MESON Chess Problem Database

Problem Display
PID: 47418 (1Q6/rN6/k7/2K5/8/7B/6b1/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Chovgun, 1992

1Q6/rN6/k7/2K5/8/7B/6b1/8

#2

4 + 3

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Qxa8#
    • 1...Bf1
      • 2.Bxf1#
    • 1...Bh1
      • 2.Bf1#
  • Tries
    • 1.Bxg2?
      • threat
        • 2.Bf1#
        • 2.Qd6#
      • 1...Ra8
        • 2.Bf1#
        • 2.Qxa8#
      • 1...Rxb7!
    • 1.Qd6+?
      • 1...Bc6
        • 2.Qxc6#
      • 1...Kxb7!
    • 1.Qd8?
      • threat
        • 2.Qb6#
      • 1...Kxb7
        • 2.Qc8#
      • 1...Rxb7!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qb5#
      • 1...Kxb7
        • 2.Qc8#
      • 1...Rxb7
        • 2.Qa4#
      • 1...Ra8
        • 2.Qxa8#
      • 1...Bf1
        • 2.Qc6#
      • 1...Bc6
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(c);OGATEB::QAR2(D),XR(c)
    • B(a);OGATE::B(A),XB(a)
    • B(a);OGATE::B(A)
  • Tries
    • Try
      • B(A);XB(a)
      • Threat
        • DUALS(2)
      • Refutation
        • R(c);XS(C)
    • Try
      • Q(D);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAR2(D),XB(a)
      • Refutation
        • K(b);S_FLIGHT,XS(C)
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(D)
      • Refutation
        • R(c);XS(C)
  • Actual
    • Q(D);
    • Threat
      • QAB1(D)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(D)
      • R(c);SBLOCK,XS(C)::QAR2(D)
      • R(c);OGATEB::QAR2(D),XR(c)
      • B(a);N_GUARD::QAR2(D)
      • B(a);N_GUARD::QAR2(D),XB(a)
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