MESON Chess Problem Database

Problem Display
PID: 96819 (Br2nN2/1r1p1Kp1/3P2Q1/1Ppk1Nbn/2p1p3/1PP3B1/8/5q2 w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

200 Assorted Problems (Wenman), 1945

Br2nN2/1r1p1Kp1/3P2Q1/1Ppk1Nbn/2p1p3/1PP3B1/8/5q2

#2

10 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf5+
      • 2.Qxf5#
    • 1...Rd8
      • 2.Bxb7#
    • 1...Bf6
      • 2.Se3#
    • 1...Shf6
      • 2.Se7#
    • 1...Sxd6+
      • 2.Qxd6#
    • 1...Sef6
      • 2.Se7#
  • Tries
    • 1.Qf6?
      • threat
        • 2.Se7#
        • 2.Qe5#
      • 1...Sxd6+
        • 2.Qxd6#
      • 1...Qxf5
        • 2.Qxf5#
      • 1...Bxf6
        • 2.Se3#
      • 1...Sxg3
        • 2.Se7#
      • 1...Shxf6
        • 2.Se7#
      • 1...Sexf6
        • 2.Se7#
      • 1...gxf6
        • 2.Se7#
      • 1...e3
        • 2.Qe5#
      • 1...Qf4
        • 2.Se7#
      • 1...Bf4
        • 2.Se7#
      • 1...Sf4
        • 2.Se3#
        • 2.Se7#
      • 1...cxb3!
  • Keys
    • 1.Sxd7!
      • threat
        • 2.Qe6#
      • 1...Qxf5+
        • 2.Qxf5#
      • 1...Sxd6+
        • 2.Qxd6#
      • 1...Bf6
        • 2.Se3#
      • 1...Sf4
        • 2.Se3#
      • 1...Shf6
        • 2.Se7#
      • 1...Sef6
        • 2.Se7#
      • 1...Sc7
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(a);CHECK,OGATE,XS(E)::QAR2(G),XQ(a)
    • R(k);N_GUARD::B(I),XR(h)
    • B(f);N_PINS(E)::S(E)
    • S(g);N_PINS(E)::S(E)
    • S(l);CHECK,OGATE,XP(F)::QAR1(G),XS(l)
    • S(l);N_PINS(E)::S(E)
  • Tries
    • Try
      • Q(G);N_SPINS(E)
      • Threat
        • DUALS(2)
      • Vars
        • S(l);CHECK,OGATE,XP(F)::QAR1(G),XS(l)
        • Q(a);OGATE,P_PINQ(G),XS(E)::QAR2(G),XQ(a)
        • B(f);N_GUARD,XQ(G)::S(E)
        • S(g);XB(C)::S(E)
        • S(g);XQ(G)::S(E)
        • S(l);XQ(G)::S(E)
        • P(j);XQ(G)::S(E)
        • P(c);::QAR1(G)
        • Q(a);::S(E)
        • B(f);::S(E)
      • Refutation
        • P(b);XP(A)
  • Actual
    • S(J);XP(i)
    • Threat
      • QAB1(G)
    • Vars
      • Q(a);CHECK,OGATE,P_PINS(J),XS(E)::QAR2(G),XQ(a)
      • S(l);CHECK,OGATE,XP(F)::QAR1(G),XS(l)
      • B(f);N_PINS(E),P_PINS(J)::S(E)
      • S(g);N_PINS(E),P_PINS(J)::S(E)
      • S(l);N_PINS(E),P_PINS(J)::S(E)
      • S(l);::S(J)
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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).