MESON Chess Problem Database

Problem Display
PID: 222446 (4K3/8/4N3/2pkN3/P5P1/3p4/3B4/Q7 w - - 0 1)

Cotton, William C

L'Universe Illustre, 1884

4K3/8/4N3/2pkN3/P5P1/3p4/3B4/Q7

#2

7 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Kd7?
      • 1...c4
        • 2.Qd4#
      • 1...Ke4!
    • 1.Ke7?
      • 1...c4
        • 2.Qd4#
      • 1...Ke4!
  • Keys
    • 1.Sc4!
      • 1...Kxc4
        • 2.Qa2#
      • 1...Ke4
        • 2.Qh1#
      • 1...Kc6
        • 2.Qh1#
      • 1...Kxe6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Vars
        • P(b);N_GUARD::QAR1(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • K(G);P-FLIGHT
      • Vars
        • P(b);N_GUARD::QAR1(A)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(E);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(E)::QAB(A)
      • K(c);S_FLIGHT::QAB(A)
      • K(c);S_FLIGHT,XS(F)::QAR1(A)
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