MESON Chess Problem Database

Problem Display
PID: 274375 (7Q/3p1p2/3P1R2/3Pk2K/4p1P1/2P1p3/8/8 w - - 0 1)

Marysko, Milos

Mat, 1973

7Q/3p1p2/3P1R2/3Pk2K/4p1P1/2P1p3/8/8

#2

7 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Qh7?
      • threat
        • 2.Qf5#
      • 1...Kxf6
        • 2.Qh8#
      • 1...Kxd5!
    • 1.Qa8?
      • 1...Kxf6
        • 2.Qh8#
      • 1...e2!
    • 1.Qe8+?
      • 1...Kxf6
        • 2.Qh8#
      • 1...Kxd5!
    • 1.Qf8?
      • threat
        • 2.Rf5#
      • 1...Kxf6
        • 2.Qh8#
      • 1...Kxd5!
    • 1.Qg8?
      • threat
        • 2.Qg5#
      • 1...Kxf6
        • 2.Qg5#
        • 2.Qh8#
      • 1...Kxd5!
  • Keys
    • 1.Qb8!
      • threat
        • 2.Rf5#
      • 1...Kxd5
        • 2.Qb5#
      • 1...Kxf6
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XR(F)::QAB(G)
      • Refutation
        • K(c);P-FLIGHT,XP(C)
    • Try
      • Q(G);
      • Vars
        • K(c);OGATEB,S_FLIGHT,XR(F)::QAB(G)
      • Refutation
        • P(a);
    • Try
      • Q(G);CHECK
      • Vars
        • K(c);OGATEB,S_FLIGHT,XR(F)::QAB(G)
      • Refutation
        • K(c);P-FLIGHT,XP(C)
    • Try
      • Q(G);
      • Threat
        • R1(F)
      • Vars
        • K(c);OGATEB,P_SPINP(e),S_FLIGHT,XR(F)::QAB(G)
      • Refutation
        • K(c);P-FLIGHT,XP(C)
    • Try
      • Q(G);
      • Threat
        • QAR2(G)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(e),XP(C)
  • Actual
    • Q(G);
    • Threat
      • R1(F)
    • Vars
      • K(c);OGATEB,P-FLIGHT,XP(C)::QAR2(G)
      • K(c);OGATEB,S_FLIGHT,XR(F)::QAB(G)
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