MESON Chess Problem Database

Problem Display
PID: 270922 (8/8/Q7/3pN3/2NkP3/8/3K4/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Mosiashvili-75 JT (Kudesnik), 2023

8/8/Q7/3pN3/2NkP3/8/3K4/8

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qb6#
    • 1...dxe4
      • 2.Qd6#
  • Tries
    • 1.Qb5?
      • threat
        • 2.Qxd5#
      • 1...dxc4
        • 2.Qd5#
      • 1...dxe4
        • 2.Sc6#
      • 1...Kxe4!
    • 1.Qc6?
      • threat
        • 2.Qxd5#
      • 1...dxc4
        • 2.Sf3#
        • 2.Qd5#
      • 1...dxe4
        • 2.Qd6#
      • 1...Kxe4!
    • 1.Qg6?
      • 1...Kc5
        • 2.Qb6#
      • 1...dxe4
        • 2.Qd6#
      • 1...dxc4!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qxd5#
      • 1...Kxe4
        • 2.Qg4#
      • 1...Kc5
        • 2.Qb6#
      • 1...dxc4
        • 2.Qd5#
      • 1...dxe4
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,S_FLIGHT::QAB1(E)
    • P(b);OGATEB,SBLOCK,XP(C)::QAR2(E)
  • Tries
    • Try
      • Q(E);
      • Threat
        • QAR1(E),XP(b)
      • Vars
        • P(b);XS(B)::QAR1(E)
        • P(b);SBLOCK,XP(C)::S(D)
      • Refutation
        • K(a);P-FLIGHT,XP(C)
    • Try
      • Q(E);
      • Threat
        • QAR1(E),XP(b)
      • Vars
        • P(b);OGATEB,SBLOCK,XP(C)::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b),XP(C)
    • Try
      • Q(E);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(E)
        • P(b);OGATEB,SBLOCK,XP(C)::QAR2(E)
      • Refutation
        • P(b);XS(B)
  • Actual
    • Q(E);
    • Threat
      • QAR1(E),XP(b)
    • Vars
      • K(a);OGATEB,P-FLIGHT,XP(C)::QAR2(E)
      • K(a);N_GUARD,S_FLIGHT::QAB1(E)
      • P(b);XS(B)::QAR1(E)
      • P(b);OGATEB,SBLOCK,XP(C)::QAR2(E)
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