MESON Chess Problem Database

Problem Display
PID: 232925 (KQ6/8/3NN3/3kp3/8/5R2/8/8 w - - 0 1)

Evdokimov, Aleksey

Kudesnik, 2011

KQ6/8/3NN3/3kp3/8/5R2/8/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4?
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qb7#
      • 1...Kc6
        • 2.Qb7#
      • 1...Kxe6
        • 2.Qd6#
      • 1...e4!
    • 1.Sf7?
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qb7#
      • 1...Kc6
        • 2.Qb7#
      • 1...Kxe6
        • 2.Qd6#
      • 1...e4!
    • 1.Sc8?
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qb7#
      • 1...Kc6
        • 2.Qb7#
      • 1...Kxe6
        • 2.Qd6#
      • 1...e4!
    • 1.Se8?
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qb7#
      • 1...Kc6
        • 2.Qb7#
      • 1...Kxe6
        • 2.Qd6#
      • 1...e4!
    • 1.Rd3+?
      • 1...Kc6
        • 2.Qc7#
        • 2.Qb5#
        • 2.Qb7#
      • 1...Kxe6!
    • 1.Qe8?
      • threat
        • 2.Rd3#
      • 1...Kxd6
        • 2.Rd3#
      • 1...e4!
  • Keys
    • 1.Se4!
      • 1...Kc4
        • 2.Qb3#
      • 1...Kxe4
        • 2.Qb7#
      • 1...Kc6
        • 2.Qb7#
      • 1...Kxe6
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(B)::QAB1(E)
        • K(a);S_FLIGHT::QAB(E)
        • K(a);S_FLIGHT::QAB1(E)
        • K(a);S_FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • P(b);
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
        • K(a);S_FLIGHT::QAB(E)
        • K(a);S_FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • P(b);
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
        • K(a);S_FLIGHT::QAB(E)
        • K(a);S_FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • P(b);
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
        • K(a);S_FLIGHT::QAB(E)
        • K(a);S_FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • P(b);
    • Try
      • R(A);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(E);
      • Threat
        • R(A)
      • Vars
        • K(a);P-FLIGHT,XS(B)::R(A)
      • Refutation
        • P(b);
  • Actual
    • S(B);
    • Vars
      • K(a);S_FLIGHT::QAB1(E)
      • K(a);S_FLIGHT,XS(B)::QAB(E)
      • K(a);S_FLIGHT,XS(C)::QAR1(E)
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