MESON Chess Problem Database

Problem Display
PID: 68370 (K3R3/3P4/2N1B3/Np6/1p2k1pP/5RP1/nbbrPp1p/q6Q w - - 0 1)

Luke, R

Chess, 1949

K3R3/3P4/2N1B3/Np6/1p2k1pP/5RP1/nbbrPp1p/q6Q

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Bxa2#
      • 2.Bb3#
      • 2.Bc4#
      • 2.Bf7#
      • 2.Bg8#
    • 1...Rd5
      • 2.Bf5#
    • 1...Bc1
      • 2.Ra3#
      • 2.Rb3#
      • 2.Rc3#
      • 2.Rd3#
    • 1...Bb1
      • 2.Ra3#
      • 2.Rb3#
      • 2.Rc3#
      • 2.Rd3#
    • 1...Bd1
      • 2.Ra3#
      • 2.Rb3#
      • 2.Rc3#
      • 2.Rd3#
    • 1...Sc1
      • 2.Ra3#
      • 2.Rb3#
      • 2.Rc3#
      • 2.Rd3#
    • 1...Sc3
      • 2.Ba2#
      • 2.Bb3#
      • 2.Bc4#
      • 2.Bf7#
      • 2.Bg8#
    • 1...f1S
      • 2.Ra3#
      • 2.Rb3#
      • 2.Rc3#
      • 2.Rd3#
    • 1...gxf3
      • 2.Qxf3#
  • Keys
    • 1.Sb7!
      • threat
        • 2.Sc5#
      • 1...Sc1+
        • 2.Ra3#
      • 1...Sc3+
        • 2.Ba2#
      • 1...gxf3
        • 2.Qxf3#
      • 1...Rd5
        • 2.Bf5#
      • 1...Bd4
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(e);SBLOCK::R(K)+B(H),DCHECK
    • P(j);OGATE,P_SPINP(j),XR(C)::QAB1(A),XP(j)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • S(b);CHECK,S_CUTQ(a)::QAB(A)+R(C)
      • S(b);CHECK,S_CUTB(c)::R(K)+B(H)
      • P(j);OGATE,P_SPINP(j),XR(C)::QAB1(A),XP(j)
      • R(e);SBLOCK::R(K)+B(H),DCHECK
      • B(c);S_CUTR(e)::S(F)
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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).