MESON Chess Problem Database

Problem Display
PID: 185831 (4bR2/prN1b1pr/8/n3pp2/n3k3/4B3/2P3P1/1B1NKR1Q w - - 0 1)

Lin, Tien Ling

Chess, 1957

4bR2/prN1b1pr/8/n3pp2/n3k3/4B3/2P3P1/1B1NKR1Q

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3
      • 2.cxb3#
    • 1...Rxc7
      • 2.c4#
    • 1...Rh3
      • 2.gxh3#
    • 1...Bb4+
      • 2.c3#
    • 1...Bh4+
      • 2.g3#
    • 1...Bb5
      • 2.c4#
    • 1...Bh5
      • 2.g4#
    • 1...Sb6
      • 2.c3#
      • 2.c4#
    • 1...Sb3
      • 2.cxb3#
      • 2.c3#
      • 2.c4#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Sf2#
      • 1...Bb4+
        • 2.c3#
      • 1...Sb3+
        • 2.cxb3#
      • 1...Rxc7
        • 2.c4#
      • 1...Bh4
        • 2.g3#
        • 2.g4#
      • 1...Sc4+!
    • 1.Sc3+?
      • 1...Kxe3
        • 2.Qg1#
      • 1...Sxc3!
  • Keys
    • 1.Ke2!
      • threat
        • 2.Sf2#
      • 1...Bb5+
        • 2.c4#
      • 1...Bh5+
        • 2.g4#
      • 1...Sc3+
        • 2.Sxc3#
      • 1...Rxc7
        • 2.c4#
      • 1...Bh4
        • 2.g3#
        • 2.g4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(g);OGATE::B(A)+P(F),XR(g)
    • R(g);N_GUARD,XS(I)::B(A)+P(F)
    • R(j);OGATE::QAB(E)+P(G),XR(j)
    • B(h);CHECK,S_CUTR(g)::B(A)+P(F)
    • B(h);CHECK,S_CUTR(j)::QAB(E)+P(G)
    • B(k);S_CUTR(g)::B(A)+P(F)
    • B(k);S_CUTR(j)::QAB(E)+P(G)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • S(B)
      • Vars
        • B(h);CHECK,S_CUTR(g)::B(A)+P(F)
        • S(c);CHECK,OGATE::B(A)+P(F),XS(c)
        • R(g);N_GUARD,XS(I)::B(A)+P(F)
      • Refutation
        • S(c);CHECK
    • Try
      • S(B);CHECK
      • Vars
        • K(b);P-FLIGHT,XB(H)::QAB(E)
      • Refutation
        • S(a);XS(B)
  • Actual
    • K(C);P-FLIGHT
    • Threat
      • S(B)
    • Vars
      • B(k);CHECK,S_CUTR(g)::B(A)+P(F)
      • B(k);CHECK,S_CUTR(j)::QAB(E)+P(G)
      • S(a);CHECK,N_GUARD::S(B),XS(a)
      • R(g);N_GUARD,XS(I)::B(A)+P(F)
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).