MESON Chess Problem Database

Problem Display
PID: 72367 (qn6/8/p3R3/3k1P2/R3N3/1P3P1N/1rP1n1K1/3r1Bb1 w - - 0 1)

Marlow, T

Chess, 1953

qn6/8/p3R3/3k1P2/R3N3/1P3P1N/1rP1n1K1/3r1Bb1

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Ra5#
    • 1...Bd4
      • 2.c4#
    • 1...Bc5
      • 2.Sf6#
    • 1...Sc1
      • 2.Sf4#
    • 1...Sc3
      • 2.Sf4#
    • 1...Sg3
      • 2.Sf4#
    • 1...Sd4
      • 2.Sf4#
      • 2.Bc4#
    • 1...Sf4+
      • 2.Sxf4#
  • Tries
    • 1.Sc3+?
      • 1...Kc5
        • 2.Rc4#
      • 1...Sxc3!
  • Keys
    • 1.f4!
      • threat
        • 2.Rd6#
      • 1...Sxf4+
        • 2.Sxf4#
      • 1...Qc6
        • 2.Re5#
      • 1...Rd4
        • 2.Ra5#
      • 1...Bd4
        • 2.c4#
      • 1...Bc5
        • 2.Sf6#
      • 1...Sd4
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(a);SBLOCK,S_CUTB(b)::R(G)
    • B(b);SBLOCK::P(B)
    • B(b);SBLOCK::S(H)
    • S(d);N_GUARD,P_PINP(B)::S(F)
    • S(d);CHECK,N_GUARD,P_PINP(B)::S(F),XS(d)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(e);P-FLIGHT,P_PINP(E)::R1(G)
      • Refutation
        • S(d);P_PINP(B),XS(H)
  • Actual
    • P(E);
    • Threat
      • R1(J)
    • Vars
      • S(d);CHECK,P_PINP(B),XP(E)::S(F),XS(d)
      • Q(g);SBLOCK::R1(J)
      • R(a);SBLOCK,S_CUTB(b)::R(G)
      • B(b);SBLOCK::P(B)
      • B(b);SBLOCK::S(H)
      • S(d);OGATE,P_PINP(B),SBLOCK::B(A)
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).