MESON Chess Problem Database

Problem Display
PID: 2220 (6K1/1R2N3/4p3/p3k3/N1Q1P2P/7p/7P/8 w - - 0 1)

Cook, Eugene Beauharnais

Source?, 0000

6K1/1R2N3/4p3/p3k3/N1Q1P2P/7p/7P/8

#2

8 + 4

1679 American Chess Nuts 1868
5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qd4#
      • 2.Qc5#
      • 2.Qc7#
  • Tries
    • 1.Kf7?
      • 1...Kd6
        • 2.Qxe6#
        • 2.Qd4#
        • 2.Qc5#
        • 2.Qc7#
      • 1...Kf4!
    • 1.Kg7?
      • 1...Kd6
        • 2.Qd4#
        • 2.Qc5#
        • 2.Qc7#
      • 1...Kf4!
    • 1.Sd5?
      • 1...Kd6
        • 2.Qc7#
      • 1...exd5!
    • 1.Sg6+?
      • 1...Kd6
        • 2.Qa6#
        • 2.Qc5#
        • 2.Qc7#
        • 2.e5#
      • 1...Kf6!
    • 1.Rb6?
      • 1...Kf6
        • 2.Rxe6#
        • 2.Qxe6#
      • 1...Kf4!
  • Keys
    • 1.Qe2!
      • 1...Kd4
        • 2.Sc6#
      • 1...Kf4
        • 2.Sg6#
      • 1...Kd6
        • 2.e5#
      • 1...Kf6
        • 2.e5#

This anticipates 210253(1967)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • K(H);P-FLIGHT
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(G);
      • Vars
        • K(c);S_FLIGHT::QAB1(C)
      • Refutation
        • P(d);XS(G)
    • Try
      • S(G);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(F);
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(c);S_FLIGHT::S(G)
      • K(c);OGATE,S_FLIGHT::P(D)
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