MESON Chess Problem Database

Problem Display
PID: 11253 (Kb3N2/B1p2p1q/R5p1/RP1kP1Q1/2p1p2p/2r1r3/3P4/3N4 w - - 0 1)

Mansfield, Comins

L'Echiquier EP Ty., 1937

Kb3N2/B1p2p1q/R5p1/RP1kP1Q1/2p1p2p/2r1r3/3P4/3N4

#2

10 + 11

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Sxe3#
    • 1...Rc2
      • 2.Sxe3#
    • 1...Re1
      • 2.Sxc3#
    • 1...Re2
      • 2.Sxc3#
    • 1...c5
      • 2.bxc5 ep#
    • 1...c6
      • 2.bxc6#
    • 1...f5
      • 2.exf5 ep#
    • 1...f6
      • 2.exf6#
  • Tries
    • 1.Qe7?
      • threat
        • 2.Qc5#
      • 1...c5
        • 2.Qxc5#
        • 2.bxc5 ep#
      • 1...Bxa7!
    • 1.b6+?
      • 1...Kd4
        • 2.Qd8#
      • 1...Kc6
        • 2.Qf6#
        • 2.b7#
      • 1...c5!
  • Keys
    • 1.d4!
      • threat
        • 2.Qd8#
      • 1...cxd4 ep
        • 2.Sxe3#
      • 1...exd4 ep
        • 2.Sxc3#
      • 1...c5
        • 2.bxc5 ep#
      • 1...c6
        • 2.bxc6#
      • 1...f5
        • 2.exf5 ep#
      • 1...f6
        • 2.exf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(a);N_GUARD::S(A),XR(b)
    • R(b);N_GUARD::S(A),XR(a)
    • P(h);OGATE::R(C)+P(D),XP(h),EP
    • P(h);OGATE::R(C)+P(D),XP(h)
    • P(i);OGATE::QAR(F)+P(E),XP(i),EP
    • P(i);OGATE::QAR(F)+P(E),XP(i)
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Refutation
        • B(k);XB(H)
    • Try
      • P(D);CHECK
      • Vars
        • K(f);P-FLIGHT::QAR(F)
      • Refutation
        • P(h);P_SPINP(h)
  • Actual
    • P(B);
    • Threat
      • QAR(F)
    • Vars
      • P(c);EP,S_CUTR(a),XP(B)::S(A),XR(b)
      • P(d);EP,S_CUTR(b),XP(B)::S(A),XR(a)
      • P(h);OGATE::R(C)+P(D),XP(h),EP
      • P(h);OGATE::R(C)+P(D),XP(h)
      • P(i);OGATE::QAR(F)+P(E),XP(i),EP
      • P(i);OGATE::QAR(F)+P(E),XP(i)
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).