MESON Chess Problem Database

Problem Display
PID: 227634 (R4K2/1n3B2/N3p3/bp6/kB6/1pp5/n7/2RN1Q2 w - - 0 1)

Talaber, Laszlo

Zaszlonk, 1926

R4K2/1n3B2/N3p3/bp6/kB6/1pp5/n7/2RN1Q2

#2

8 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb4+
      • 2.Sc5#
    • 1...Sxc1
      • 2.Sxc3#
    • 1...c2
      • 2.Sb2#
  • Tries
    • 1.Ra1?
      • threat
        • 2.Sxc3#
      • 1...Bxb4+
        • 2.Sc5#
      • 1...c2
        • 2.Sb2#
        • 2.Sc3#
      • 1...b2!
    • 1.Rxc3?
      • threat
        • 2.Sb2#
      • 1...Bxb4+
        • 2.Sc5#
      • 1...b2
        • 2.Sxb2#
        • 2.Ra3#
      • 1...Sxb4!
  • Keys
    • 1.Qc4!
      • 1...Bxb4+
        • 2.Sc5#
      • 1...Sxc1
        • 2.Sxc3#
      • 1...Sxb4
        • 2.Ra1#
      • 1...bxc4
        • 2.Be8#
      • 1...Bb6
        • 2.Sc5#
      • 1...Bc7
        • 2.Sc5#
      • 1...Bd8
        • 2.Sc5#
      • 1...Sc5
        • 2.Sxc5#
      • 1...Sd6
        • 2.Sc5#
      • 1...Sd8
        • 2.Sc5#
      • 1...b2
        • 2.Qxa2#
      • 1...c2
        • 2.Sb2#
      • 1...e5
        • 2.Qxb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • B(e);CHECK,SBLOCK,XB(D)::R(G)+S(E),DCHECK
    • S(a);N_GUARD,XR(A)::S(B),XP(c)
    • P(c);N_GUARD::S(B)
  • Tries
    • Try
      • R(A);P_PINS(a)
      • Threat
        • S(B),XP(c)
      • Vars
        • B(e);CHECK,SBLOCK,XB(D)::R(G)+S(E),DCHECK
      • Refutation
        • P(b);
    • Try
      • R(A);XP(c)
      • Threat
        • S(B)
      • Vars
        • B(e);CHECK,SBLOCK,XB(D)::R(G)+S(E),DCHECK
      • Refutation
        • S(a);XB(D)
  • Actual
    • Q(C);
    • Vars
      • B(e);CHECK,P_SPINB(e),XB(D)::R(G)+S(E),DCHECK
      • S(a);N_GUARD,XR(A)::S(B),XP(c)
      • S(a);OGATEB,P_SPINS(a),XB(D)::R(A)
      • P(f);OGATEB,XQ(C)::B(F)
      • B(e);::R(G)+S(E),DCHECK
      • S(h);N_GUARD::S(E),XS(h)
      • S(h);N_GUARD::S(E)
      • P(b);OGATE::QAR2(C),XS(a)
      • P(c);N_GUARD::S(B)
      • P(g);::QAB1(C),XP(b)
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).