MESON Chess Problem Database

Problem Display
PID: 217481 (8/6B1/2pp2P1/2pk3p/p6P/K7/3PN3/6Q1 w - - 0 1)

CW of Sunbury (Charles White)

English Mechanic and World of Science, 1873

(First published on Fri Jan 17 1873)

8/6B1/2pp2P1/2pk3p/p6P/K7/3PN3/6Q1

#2

7 + 6

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3+?
      • 1...Kc4
        • 2.Qf1#
      • 1...Ke6!
    • 1.Sf4+?
      • 1...Kc4
        • 2.Qf1#
      • 1...Ke4!
    • 1.Qe3?
      • 1...c4
        • 2.Sc3#
        • 2.Sf4#
      • 1...Kc4!
    • 1.Qg4?
      • threat
        • 2.Sc3#
      • 1...c4
        • 2.Qf5#
      • 1...hxg4!
  • Keys
    • 1.Qf1!
      • 1...Kc4
        • 2.Sc3#
        • 2.Sf4#
      • 1...Ke4
        • 2.Sc3#
      • 1...Ke6
        • 2.Qf7#
      • 1...c4
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • S(C)
      • Vars
        • P(b);SBLOCK::QAR2(A)
      • Refutation
        • P(d);XQ(A)
  • Actual
    • Q(A);
    • Vars
      • K(c);S_FLIGHT::S(C)
      • K(c);S_FLIGHT::QAB1(A)
      • P(b);SBLOCK::QAR2(A)
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