MESON Chess Problem Database

Problem Display
PID: 36230 (7K/8/8/Q3R3/1N1P4/2P2B2/Np1k3P/brq5 w - - 0 1)

Yaroslavtsev, Arkady Ivanovich

1st Prize, Shakhmaty v SSSR, 1965

7K/8/8/Q3R3/1N1P4/2P2B2/Np1k3P/brq5

#2

9 + 5

3772 FIDE Album (1965-1967) 1976

SOLUTION

  • SOUND
  • Tries
    • 1.Qa4?
      • threat
        • 2.Re2#
      • 1...Qe1
        • 2.Qc2#
      • 1...Qf1
        • 2.Qc2#
      • 1...Qc2
        • 2.Qxc2#
      • 1...Qd1!
    • 1.Qb5?
      • threat
        • 2.Qe2#
        • 2.Qd3#
      • 1...Qxc3
        • 2.Qe2#
      • 1...Qe1
        • 2.Qd3#
      • 1...Qd1
        • 2.Qd3#
      • 1...Qc2
        • 2.Qe2#
      • 1...Qf1!
  • Keys
    • 1.Qa6!
      • threat
        • 2.Qe2#
        • 2.Qd3#
        • 2.Qh6#
      • 1...Qxc3
        • 2.Qe2#
      • 1...Qe1
        • 2.Qd3#
      • 1...Qd1
        • 2.Qd3#
        • 2.Qh6#
      • 1...Qf1
        • 2.Qh6#
      • 1...Qg1
        • 2.Qe2#
        • 2.Qd3#
      • 1...Qc2
        • 2.Qe2#
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Threat
        • R1(H)
      • Vars
        • Q(c);N_GUARD::QAR1(G)
        • Q(c);N_GUARD::QAR1(G),XQ(c)
      • Refutation
        • Q(c);
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • Q(c);XP(C)::QAR1(G)
        • Q(c);::QAR1(G)
      • Refutation
        • Q(c);
  • Actual
    • Q(G);
    • Threat
      • DUALS(3)
    • Vars
      • Q(c);XP(C)::QAR1(G)
      • Q(c);::QAR1(G)
      • Q(c);::QAB(G)
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