MESON Chess Problem Database

Problem Display
PID: 46744 (K6b/1N5p/6p1/RP1kp1nR/6Q1/1bP4r/7r/8 w - - 0 1)

Mansfield, Comins

4th Comm., Dunaujvarosi Hirlap TT, 1962-1964

K6b/1N5p/6p1/RP1kp1nR/6Q1/1bP4r/7r/8

#2

7 + 9

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.c4#
    • 1...Bc2
      • 2.c4#
    • 1...Ba4
      • 2.c4#
  • Tries
    • 1.Ra6?
      • threat
        • 2.Rd6#
      • 1...Se4
        • 2.Qe6#
      • 1...e4
        • 2.Qe6#
      • 1...Sf7
        • 2.Qd4#
      • 1...Ra2!
  • Keys
    • 1.Ra4!
      • threat
        • 2.Qd7#
      • 1...Bxa4
        • 2.c4#
      • 1...e4
        • 2.Qxe4#
      • 1...Bc4
        • 2.Qxc4#
      • 1...Se4
        • 2.Rd4#
      • 1...Se6
        • 2.Qe4#
      • 1...Sf7
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • B(b);N_GUARD::P(A)
  • Tries
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Vars
        • S(f);N_GUARD,P_SPINP(e),SBLOCK::QAB1(B)
        • P(e);P_SPINS(f)::QAB1(B)
        • S(f);P_SPINP(e)::QAR1(B)
      • Refutation
        • R(a);P_PINR(C)
  • Actual
    • R(C);
    • Threat
      • QAR2(B)
    • Vars
      • B(b);N_GUARD,XR(C)::P(A)
      • P(e);P_SPINS(f)::QAB1(B),XP(e)
      • B(b);N_GUARD::QAB1(B),XB(b)
      • S(f);P_SPINP(e)::R1(C)
      • S(f);N_GUARD,P_SPINP(e),SBLOCK::QAB1(B)
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).