MESON Chess Problem Database

Problem Display
PID: 158816 (8/7N/2K3kp/5N2/8/2B5/4Q3/8 w - - 0 1)

Aberman, Victor

Kudesnik, 2013

8/7N/2K3kp/5N2/8/2B5/4Q3/8

#2

5 + 2

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Se7+?
      • 1...Kxh7
        • 2.Qd3#
        • 2.Qc2#
        • 2.Qe4#
      • 1...Kf7!
    • 1.Sg7?
      • 1...Kf7
        • 2.Qe6#
        • 2.Qe8#
      • 1...h5
        • 2.Qxh5#
      • 1...Kxh7!
    • 1.Qg4+?
      • 1...Kxh7
        • 2.Qg7#
      • 1...Kf7!
    • 1.Qh5+?
      • 1...Kxh7
        • 2.Qf7#
      • 1...Kxh5!
    • 1.Qe4?
      • 1...Kh5
        • 2.Sg3#
        • 2.Sg7#
      • 1...Kf7
        • 2.Sxh6#
      • 1...Kxh7
        • 2.Se7#
      • 1...h5!
    • 1.Qe6+?
      • 1...Kxh7
        • 2.Qf7#
      • 1...Kh5!
    • 1.Qe8+?
      • 1...Kxh7
        • 2.Qf7#
      • 1...Kxf5!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Qh5#
      • 1...Kxf5
        • 2.Qg4#
      • 1...Kg5
        • 2.Qg4#
      • 1...Kf7
        • 2.Qe8#
      • 1...h5
        • 2.Qxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • P(b);::QAB1(A),XP(b)
      • Refutation
        • K(a);S_FLIGHT,XS(E)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(E)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,P_SPINP(b),S_FLIGHT,XS(E)::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::S(C),XP(b)
        • K(a);S_FLIGHT,XS(E)::QAB(A)+S(C)
      • Refutation
        • P(b);
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(E)::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(E)::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
  • Actual
    • S(E);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);S_FLIGHT,XS(C)::QAB1(A)
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT::QAB1(A)
      • P(b);::QAB1(A),XP(b)
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