MESON Chess Problem Database

Problem Display
PID: 152418 (3r4/8/8/2N1BkpB/2pP2n1/4QKn1/2N4b/8 w - - 0 1)

Wilson, Francis Vaux

1st Prize, Good Companions (November First Attempt Ty.), 1915

3r4/8/8/2N1BkpB/2pP2n1/4QKn1/2N4b/8

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Sxd4#
    • 1...Sf1
      • 2.Qe4#
    • 1...Sh1
      • 2.Qe4#
    • 1...Se2
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...Sxh5
      • 2.Qe4#
    • 1...Sxe3
      • 2.Sxe3#
    • 1...Sxe5+
      • 2.Qxe5#
  • Tries
    • 1.Qd3+?
      • 1...Se4
        • 2.Qxe4#
      • 1...cxd3!
  • Keys
    • 1.Kg2!
      • threat
        • 2.Qf3#
      • 1...Sxe3+
        • 2.Sxe3#
      • 1...Rxd4
        • 2.Sxd4#
      • 1...Sxh5
        • 2.Qe4#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Sf1
        • 2.Qe4#
      • 1...Sh1
        • 2.Qe4#
      • 1...Se2
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(g);XP(D)::S(A),XR(g)
    • S(b);N_GUARD::QAB1(B)
    • S(b);N_GUARD::QAB1(B),XS(b)
    • S(b);N_GUARD,XB(G)::QAB1(B)
    • S(d);XQ(B)::S(A),XS(d)
    • S(d);CHECK,OGATE,XB(F)::QAR1(B),XS(d)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB1(B),XS(b)
      • Refutation
        • P(c);XQ(B)
  • Actual
    • K(C);S_FLIGHT
    • Threat
      • QAR2(B)
    • Vars
      • S(d);CHECK,XQ(B)::S(A),XS(d)
      • R(g);XP(D)::S(A),XR(g)
      • S(b);N_GUARD,XB(G)::QAB1(B)
      • S(d);OGATE,XB(F)::QAR1(B),XS(d)
      • S(b);N_GUARD::QAB1(B)
      • S(b);N_GUARD::QAB1(B),XS(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).