MESON Chess Problem Database

Problem Display
PID: 21699 (8/8/8/6QB/6NK/3NB3/5pkp/6b1 w - - 0 1)

Watney, Charles Gold

Good Companions (May), 1920

8/8/8/6QB/6NK/3NB3/5pkp/6b1

#2

6 + 4

3132 The Good Companion Two-Mover 1922
887 Mate in Two Moves 1931
5862 An ABC of Chess Problems 1970
3098 FIDE Album (1914-1944) (I) 1971
4640 Chess Wizardry: The New ABC of Chess Problems 1996
56 The Problemist 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Kh1
      • 2.Qd5#
    • 1...Kf3
      • 2.Sgxf2#
      • 2.Sf6#
    • 1...f1Q
      • 2.Sgf2#
    • 1...f1S
      • 2.Qd5#
    • 1...f1B
      • 2.Sgf2#
      • 2.Qd5#
    • 1...f1R
      • 2.Sgf2#
  • Tries
    • 1.Sf4+?
      • 1...Kh1
        • 2.Qd5#
      • 1...Kf3
        • 2.Qd5#
      • 1...Kf1!
    • 1.Sge5+?
      • 1...Kh1
        • 2.Bf3#
      • 1...Kf1!
    • 1.Sf6+?
      • 1...Kh1
        • 2.Bf3#
        • 2.Qd5#
      • 1...Kf1!
    • 1.Sh6+?
      • 1...Kh1
        • 2.Bf3#
        • 2.Qd5#
      • 1...Kf1!
  • Keys
    • 1.Bf4!
      • 1...h1Q+
        • 2.Sh2#
      • 1...h1R+
        • 2.Sh2#
      • 1...Kf1
        • 2.Se3#
      • 1...Kh1
        • 2.Qd5#
      • 1...Kf3
        • 2.Sgxf2#
        • 2.Sf6#
      • 1...f1Q
        • 2.Sgf2#
      • 1...f1S
        • 2.Qd5#
      • 1...f1B
        • 2.Sgf2#
        • 2.Qd5#
      • 1...f1R
        • 2.Sgf2#
      • 1...h1S
        • 2.Se3#
      • 1...h1B
        • 2.Sh2#
        • 2.Se3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAB(E)
    • P(b);SBLOCK::QAR(E)+S(C)
    • P(b);SBLOCK::QAB(E)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(c);S_FLIGHT::B(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(C);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(C);CHECK
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • B(B);
    • Vars
      • P(d);CHECK,SBLOCK::QAR(E)+S(C)
      • K(c);S_FLIGHT::S(C)
      • K(c);S_FLIGHT::QAB(E)
      • P(b);SBLOCK::QAR(E)+S(C)
      • P(b);SBLOCK::QAB(E)
      • P(d);SBLOCK::QAR(E)+S(C),DCHECK
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).