MESON Chess Problem Database

Problem Display
PID: 10666 (8/8/8/K7/8/B7/2pk2N1/3B1Q2 w - - 0 1)

Mansfield, Comins

The Problemist, 1966

8/8/8/K7/8/B7/2pk2N1/3B1Q2

#2

5 + 2

4054 Complete Mansfield/III 1999
3713 Snap 2008

SOLUTION

  • SOUND
  • Sets
    • 1...c1S
      • 2.Bb4#
    • 1...c1B
      • 2.Bb4#
  • Tries
    • 1.Bxc2?
      • threat
        • 2.Qd3#
      • 1...Kc3
        • 2.Qd3#
      • 1...Kxc2!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qxc2#
        • 2.Qd4#
      • 1...Kxd1
        • 2.Qd3#
      • 1...cxd1Q
        • 2.Bb4#
      • 1...cxd1S
        • 2.Bc1#
      • 1...cxd1B
        • 2.Bc1#
        • 2.Bb4#
      • 1...cxd1R
        • 2.Bb4#
      • 1...c1Q
        • 2.Qd4#
      • 1...c1S
        • 2.Qc2#
      • 1...c1B
        • 2.Qc2#
        • 2.Qd4#
      • 1...c1R
        • 2.Qd4#

Anticipated by 79261(1955)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • P(a);SBLOCK::B(D)
  • Tries
    • Try
      • B(A);XP(a)
      • Threat
        • QAR1(B)
      • Vars
        • K(b);S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT,XB(A)
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);P-FLIGHT,XB(A)::QAR2(B)
      • P(a);SBLOCK,XB(A)::B(D)
      • P(a);::QAR2(B)
      • P(a);::QAR1(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).