MESON Chess Problem Database

Problem Display
PID: 16235 (3k4/p3pp2/2K5/8/8/8/5R2/4Q3 w - - 0 1)

Zimmer, Eligiusz

StrateGems, 2000

3k4/p3pp2/2K5/8/8/8/5R2/4Q3

#2

3 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Qb4?
      • threat
        • 2.Qb8#
      • 1...Ke8
        • 2.Qb8#
      • 1...e5
        • 2.Qf8#
      • 1...e6
        • 2.Qf8#
      • 1...Kc8!
    • 1.Qa5+?
      • 1...Kc8
        • 2.Qc7#
      • 1...Ke8!
    • 1.Qe5?
      • threat
        • 2.Qb8#
        • 2.Qh8#
      • 1...Kc8
        • 2.Qc7#
        • 2.Qh8#
      • 1...Ke8
        • 2.Qb8#
        • 2.Qh8#
      • 1...f6
        • 2.Qb8#
      • 1...e6!
    • 1.Qxe7+?
      • 1...Kc8
        • 2.Qf8#
        • 2.Qc7#
        • 2.Qe8#
      • 1...Kxe7!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qd7#
      • 1...Ke8
        • 2.Qc8#
      • 1...fxe6
        • 2.Rf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • K(d);P-FLIGHT::QAR(A)
        • P(b);OGATE::QAR2(A)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(A)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::QAR2(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);CHECK,XP(b)
      • Refutation
        • K(d);S_FLIGHT,XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(d);P-FLIGHT,P_SPINP(b)::QAR2(A)
      • P(c);OGATE,XQ(A)::R(B)
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