MESON Chess Problem Database

Problem Display
PID: 12479 (1K6/8/1R6/1R6/8/8/8/Qq5k w - - 0 1)

Yacoubian, Garen

Tribune de Geneve, 1979

1K6/8/1R6/1R6/8/8/8/Qq5k

#2

4 + 2

2012 Miniature Chess Problems from Many Countries 1981
3295 Einfuhrung in die Welt des Schachproblem 1984
2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Tries
    • 1.Rb2?
      • threat
        • 2.Qxb1#
      • 1...Kg1
        • 2.Qxb1#
      • 1...Qc1
        • 2.Qxc1#
      • 1...Qd1
        • 2.Qxd1#
      • 1...Qe1
        • 2.Qxe1#
      • 1...Qf1
        • 2.Qxf1#
      • 1...Qg1
        • 2.Rh6#
      • 1...Qxa1!
    • 1.Rg5?
      • 1...Qxa1
        • 2.Rh6#
      • 1...Qc1
        • 2.Rh6#
        • 2.Qh8#
      • 1...Qd1
        • 2.Rh6#
      • 1...Qe1
        • 2.Rh6#
      • 1...Qf1
        • 2.Rh6#
      • 1...Qg1
        • 2.Rh6#
        • 2.Qxg1#
      • 1...Kh2!
  • Keys
    • 1.Rg6!
      • threat
        • 2.Qh8#
      • 1...Kh2
        • 2.Qh8#
      • 1...Qxa1
        • 2.Rh5#
      • 1...Qc1
        • 2.Rh5#
      • 1...Qd1
        • 2.Rh5#
      • 1...Qe1
        • 2.Rh5#
      • 1...Qf1
        • 2.Rh5#
      • 1...Qg1
        • 2.Rh5#
        • 2.Qxg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Threat
        • QAR(A),XQ(a)
      • Vars
        • K(b);P-FLIGHT::QAR(A),XQ(a)
        • Q(a);OGATE::QAR(A),XQ(a)
        • Q(a);OGATE::QAR2(A),XQ(a)
        • Q(a);::R(C)
      • Refutation
        • Q(a);N_SPINQ(a),XQ(A)
    • Try
      • R(B);P_SPINR(C)
      • Vars
        • Q(a);N_PINR(C),N_SPINQ(a),SBLOCK,XQ(A)::R(C)
        • Q(a);N_PINR(C)::R(C)
      • Refutation
        • K(b);N_SPINQ(a),P-FLIGHT
  • Actual
    • R(C);P_SPINR(B)
    • Threat
      • QAB(A)
    • Vars
      • K(b);N_SPINQ(a),P-FLIGHT::QAR(A)
      • Q(a);N_PINR(B),N_SPINQ(a),SBLOCK,XQ(A)::R(B)
      • Q(a);N_PINR(B)::R(B)
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