MESON Chess Problem Database

Problem Display
PID: 221520 (2N4K/n1QB4/r4kpN/7P/p4rR1/b1R2pn1/pp4q1/1b6 w - - 0 1)

Daniel, Arthur William

4th HM., BCPS 052. Ty., 1943-1944

2N4K/n1QB4/r4kpN/7P/p4rR1/b1R2pn1/pp4q1/1b6

#2

8 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Rxg6#
    • 1...Rf5
      • 2.Rxg6#
    • 1...Se4
      • 2.Qxf4#
  • Tries
    • 1.Qxf4+?
      • 1...Bf5
        • 2.Rxg6#
        • 2.Qd4#
      • 1...Sf5!
    • 1.Qd8+?
      • 1...Be7
        • 2.Qxe7#
      • 1...Ke5!
  • Keys
    • 1.Re3!
      • threat
        • 2.Qe5#
      • 1...Re4
        • 2.Rxg6#
      • 1...Rf5
        • 2.Rxg6#
      • 1...Ra5
        • 2.Re6#
      • 1...Rd6
        • 2.Qd8#
      • 1...Re6
        • 2.Rxe6#
      • 1...Be4
        • 2.Qc3#
      • 1...Bd6
        • 2.Re6#
      • 1...Se4
        • 2.Qxf4#
      • 1...Sc6
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(i);S_CUTB(a)::R1(B),XP(l)
    • S(g);N_GUARD,S_CUTB(a)::QAR2(E),XR(i)
  • Tries
    • Try
      • Q(E);CHECK,XR(i)
      • Refutation
        • S(g);P_SPINS(g)
    • Try
      • Q(E);CHECK
      • Vars
        • B(e);N_GUARD,P_SPINB(e)::QAB1(E),XB(e)
      • Refutation
        • K(k);S_FLIGHT
  • Actual
    • R(A);
    • Threat
      • QAB1(E)
    • Vars
      • R(i);S_CUTB(a)::R1(B),XP(l)
      • R(j);N_GUARD::R1(A)
      • R(j);S_CUTB(e)::QAB(E)
      • R(j);N_GUARD::R1(A),XR(j)
      • B(a);S_CUTR(i)::QAB(E)
      • B(e);S_CUTR(j)::R1(A)
      • S(g);N_GUARD,S_CUTB(a)::QAR2(E),XR(i)
      • S(m);S_CUTR(j)::R1(A)
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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).