MESON Chess Problem Database

Problem Display
PID: 232916 (8/8/8/4p3/8/3Q3N/K4Npk/8 w - - 0 1)

Evdokimov, Aleksey

Kudesnik, 2009

8/8/8/4p3/8/3Q3N/K4Npk/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Qd6#
  • Tries
    • 1.Qb1?
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...e4
        • 2.Qb8#
      • 1...Kg3!
    • 1.Qd1?
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...e4
        • 2.Qd6#
      • 1...Kg3!
  • Keys
    • 1.Qg6!
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...e4
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATEB::QAB(C)
  • Tries
    • Try
      • Q(C);
      • Vars
        • P(a);::QAB1(C),XQ(a)
        • P(a);::QAB1(C),XS(a)
        • P(a);::QAB1(C),XB(a)
        • P(a);::QAB1(C),XR(a)
        • P(c);OGATEB::QAB(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • P(a);::QAB1(C),XQ(a)
        • P(a);::QAB1(C),XS(a)
        • P(a);::QAB1(C),XB(a)
        • P(a);::QAB1(C),XR(a)
        • P(c);OGATEB::QAB(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • P(a);OGATE::QAB1(C),XQ(a)
      • P(a);OGATE::QAB1(C),XS(a)
      • P(a);OGATE::QAB1(C),XB(a)
      • P(a);OGATE::QAB1(C),XR(a)
      • P(c);OGATEB::QAB(C)
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