MESON Chess Problem Database

Problem Display
PID: 15896 (r3k3/n7/3BK3/8/8/8/Q7/1n6 w q - 0 1)

Zinoviev, Nikolai

Comm., Vestnik Pribuzhya, 1988

r3k3/n7/3BK3/8/8/8/Q7/1n6

#2

3 + 4

2838 Fun with Chess Miniatures 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Sb5
      • 2.Qxa8#
    • 1...0-0-0
      • 2.Qa6#
  • Tries
    • 1.Qa1?
      • threat
        • 2.Qh8#
      • 1...Kd8
        • 2.Qh8#
      • 1...0-0-0
        • 2.Qa6#
      • 1...Sc3!
    • 1.Qb2?
      • threat
        • 2.Qh8#
      • 1...Kd8
        • 2.Qh8#
      • 1...0-0-0
        • 2.Qb8#
      • 1...Sc3!
    • 1.Qf2?
      • threat
        • 2.Qf8#
      • 1...Kd8
        • 2.Qf8#
      • 1...0-0-0!
    • 1.Qh2?
      • threat
        • 2.Qh8#
      • 1...Kd8
        • 2.Qh8#
      • 1...0-0-0!
    • 1.Qa4+?
      • 1...Kd8
        • 2.Qd7#
      • 1...Sb5
        • 2.Qxa8#
      • 1...Sc6!
    • 1.Qxa7?
      • threat
        • 2.Qd7#
        • 2.Qe7#
        • 2.Qxa8#
      • 1...Kd8
        • 2.Qd7#
        • 2.Qxa8#
      • 1...0-0-0
        • 2.Qb8#
        • 2.Qa6#
        • 2.Qc7#
        • 2.Qa8#
      • 1...Rb8
        • 2.Qxb8#
        • 2.Qd7#
        • 2.Qe7#
      • 1...Rc8
        • 2.Qd7#
        • 2.Qe7#
      • 1...Rd8
        • 2.Qe7#
        • 2.Qf7#
      • 1...Rxa7!
  • Keys
    • 1.Qg2!
      • threat
        • 2.Qg8#
      • 1...Kd8
        • 2.Qg8#
      • 1...0-0-0
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(b);OGATE::QAR(A),XR(c)
    • K(d);0-0-0,OGATEB::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • K(d);P-FLIGHT::QAR(A)
        • K(d);0-0-0,OGATEB::QAB(A)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • K(d);P-FLIGHT::QAR(A)
        • K(d);0-0-0::QAR1(A)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(d);P-FLIGHT::QAR2(A)
      • Refutation
        • K(d);0-0-0
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • K(d);P-FLIGHT::QAR(A)
      • Refutation
        • K(d);0-0-0
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(A)
        • S(b);OGATE,P_SPINS(b)::QAR(A),XR(c)
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • Q(A);XS(b)
      • Threat
        • DUALS(3)
      • Refutation
        • R(c);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • K(d);P-FLIGHT::QAR(A)
      • K(d);0-0-0::QAR2(A)
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