MESON Chess Problem Database

Problem Display
PID: 19148 (b1n3BK/6Q1/3pN3/pp1krN1R/2p1pP2/2q5/8/8 w - - 0 1)

Mansfield, Comins

Comm., Magasinet, 1933

b1n3BK/6Q1/3pN3/pp1krN1R/2p1pP2/2q5/8/8

#2

7 + 10

5862 An ABC of Chess Problems 1970
4640 Chess Wizardry: The New ABC of Chess Problems 1996
3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe6
      • 2.Sd4#
      • 2.Se7#
    • 1...Bb7
      • 2.Qxb7#
    • 1...Sb6
      • 2.Se7#
    • 1...Sa7
      • 2.Se7#
    • 1...Se7
      • 2.Sxe7#
  • Tries
    • 1.Se3+?
      • 1...Kc6
        • 2.Qc7#
      • 1...Qxe3!
    • 1.Sed4+?
      • 1...Re6
        • 2.Se3#
        • 2.Sg3#
        • 2.Sh4#
        • 2.Sh6#
        • 2.Se7#
      • 1...Kc5!
    • 1.Sd8+?
      • 1...Re6
        • 2.Se3#
        • 2.Sd4#
        • 2.Se7#
      • 1...Kc5!
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qxa8#
      • 1...Rxf5+
        • 2.Sd4#
      • 1...Rxe6+
        • 2.Sd4#
      • 1...Kc6
        • 2.Sd8#
      • 1...Sxa7
        • 2.Se7#
      • 1...Bc6
        • 2.Sc7#
      • 1...Bb7
        • 2.Qxb7#
      • 1...Sb6
        • 2.Se7#
      • 1...Se7
        • 2.Sxe7#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(i);N_GUARD::QAB(E),XB(i)
    • S(j);N_GUARD::S(B)
    • S(j);N_GUARD::S(B),XS(j)
  • Tries
    • Try
      • S(B);CHECK,P_PINR(g)
      • Vars
        • K(f);N_SPINR(g),S_FLIGHT::QAR1(E)
      • Refutation
        • Q(a);XS(B)
    • Try
      • S(D);CHECK
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • S(D);CHECK
      • Refutation
        • K(f);P-FLIGHT
  • Actual
    • Q(E);
    • Threat
      • QAB(E),XB(i)
    • Vars
      • R(g);CHECK,N_GUARD,P_SPINR(g),XS(B)::B(F)+S(D)
      • R(g);CHECK,P_SPINR(g),XS(D)::R(C)+S(B)
      • K(f);S_FLIGHT::S(D)
      • S(j);N_GUARD,XQ(E)::S(B)
      • B(i);SBLOCK::B(F)+S(D),DCHECK
      • B(i);N_GUARD::QAB(E),XB(i)
      • S(j);N_GUARD::S(B)
      • S(j);N_GUARD::S(B),XS(j)
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).