MESON Chess Problem Database

Problem Display
PID: 21896 (3bBrR1/6n1/8/4R1n1/6kp/4Pp2/8/3KBQ2 w - - 0 1)

Mansfield, Comins

Western Morning News, 1921

(First published on Sat Nov 26 1921)

3bBrR1/6n1/8/4R1n1/6kp/4Pp2/8/3KBQ2

#2

7 + 7

4797 A Genius of the Two-mover 1936
3202 Complete Mansfield/I 1996
15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sh3
      • 2.Bh5#
    • 1...Se4
      • 2.Bh5#
    • 1...S5e6
      • 2.Bh5#
    • 1...Sf7
      • 2.Bd7#
    • 1...Sh7
      • 2.Bh5#
    • 1...Sf5
      • 2.Re4#
    • 1...f2
      • 2.Qg2#
    • 1...h3
      • 2.Qg1#
  • Tries
    • 1.Qh3+?
      • 1...Sxh3
        • 2.Bh5#
      • 1...Kxh3!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qxh4#
      • 1...f2
        • 2.Qg2#
      • 1...Sh3
        • 2.Bh5#
      • 1...Se4
        • 2.Bh5#
      • 1...S5e6
        • 2.Bh5#
      • 1...Sf7
        • 2.Bd7#
      • 1...Sh7
        • 2.Bh5#
      • 1...Sf5
        • 2.Re4#
      • 1...h3
        • 2.Qg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(d);P_SPINS(e)::B(F)
    • S(d);N_GUARD,P_SPINS(e),S_CUTR(g)::B(F)
    • S(e);P_SPINS(d),SBLOCK,S_CUTR(g)::R(E)
    • P(a);N_GUARD::QAR2(C)
    • P(c);SBLOCK::QAR(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • S(d);P_SPINS(e),SBLOCK,XQ(C)::B(F)
      • Refutation
        • K(b);S_FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C),XP(c)
    • Vars
      • P(a);N_GUARD::QAR2(C)
      • S(d);P_SPINS(e)::B(F)
      • S(d);N_GUARD,P_SPINS(e),S_CUTR(g)::B(F)
      • S(e);P_SPINS(d),SBLOCK,S_CUTR(g)::R(E)
      • P(c);SBLOCK::QAR(C)
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).