MESON Chess Problem Database

Problem Display
PID: 87433 (6K1/6N1/n4pk1/6P1/8/8/8/6Q1 w - - 0 1)

Bata, Lorinc

Problemista 66. TT, 1967

6K1/6N1/n4pk1/6P1/8/8/8/6Q1

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...fxg5
      • 2.Qb6#
  • Tries
    • 1.Qf2?
      • threat
        • 2.Qf5#
        • 2.Qxf6#
      • 1...fxg5
        • 2.Qb6#
      • 1...f5
        • 2.Qxf5#
      • 1...Kxg5!
    • 1.Qh2?
      • threat
        • 2.Qh5#
        • 2.Qh6#
      • 1...fxg5
        • 2.Qd6#
      • 1...Kxg5!
    • 1.Qd4?
      • threat
        • 2.Qxf6#
      • 1...fxg5
        • 2.Qb6#
        • 2.Qd6#
      • 1...f5
        • 2.Qf6#
      • 1...Kxg5!
    • 1.Qc5?
      • threat
        • 2.Qf5#
      • 1...fxg5
        • 2.Qb6#
        • 2.Qd6#
        • 2.Qc6#
      • 1...f5
        • 2.Qxf5#
      • 1...Sxc5!
    • 1.Qa1?
      • threat
        • 2.Qxf6#
      • 1...fxg5
        • 2.Qxa6#
      • 1...f5
        • 2.Qf6#
      • 1...Kxg5!
    • 1.Qb1+?
      • 1...f5
        • 2.Qxf5#
      • 1...Kxg5!
    • 1.Qd1?
      • threat
        • 2.Qh5#
      • 1...fxg5
        • 2.Qd6#
      • 1...Kxg5!
    • 1.Qf1?
      • threat
        • 2.Qf5#
        • 2.Qxf6#
      • 1...fxg5
        • 2.Qxa6#
      • 1...f5
        • 2.Qxf5#
      • 1...Kxg5!
    • 1.Qh1?
      • threat
        • 2.Qh5#
        • 2.Qh6#
      • 1...fxg5
        • 2.Qc6#
      • 1...Kxg5!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qf5#
        • 2.Qh5#
      • 1...fxg5
        • 2.Qe6#
      • 1...f5
        • 2.Qxf5#
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB,P_SPINP(b),SBLOCK,XP(B)::QAR(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);OGATEB,SBLOCK,XP(B)::QAR(A)
        • P(b);::QAB1(A),XP(b)
      • Refutation
        • K(c);P-FLIGHT,XP(B)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);OGATEB,SBLOCK,XP(B)::QAR(A)
      • Refutation
        • K(c);P-FLIGHT,XP(B)
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XP(b)
      • Vars
        • P(b);::QAR1(A)
      • Refutation
        • K(c);P-FLIGHT,XP(B)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • P(b);::QAB1(A),XP(b)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XP(b)
      • Vars
        • P(b);OGATEB,SBLOCK,XP(B)::QAR(A),XS(a)
        • P(b);::QAR1(A)
      • Refutation
        • K(c);P-FLIGHT,XP(B)
    • Try
      • Q(A);CHECK
      • Vars
        • P(b);P_SPINP(b)::QAB1(A),XP(b)
      • Refutation
        • K(c);P-FLIGHT,XP(B)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • P(b);OGATEB,SBLOCK,XP(B)::QAR(A)
      • Refutation
        • K(c);P-FLIGHT,XP(B)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);OGATEB,SBLOCK,XP(B)::QAR(A),XS(a)
        • P(b);::QAB1(A),XP(b)
      • Refutation
        • K(c);P-FLIGHT,XP(B)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);OGATEB,SBLOCK,XP(B)::QAR(A)
      • Refutation
        • K(c);P-FLIGHT,XP(B)
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • P(b);OGATEB,P_SPINP(b),SBLOCK,XP(B)::QAR2(A)
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