Problem Display
PID: 185903 (5r2/3Q4/2nbN1N1/3k1nK1/1P2p3/1P1b1Pp1/2rR4/2R2B2 w - - 0 1)

Bornstein, Max

Basler Nachrichten, 1950

5r2/3Q4/2nbN1N1/3k1nK1/1P2p3/1P1b1Pp1/2rR4/2R2B2

#2

10 + 9


15601 Albrecht-Leiss-Degener Collection 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Ra2
      • 2.Rc5#
    • 1...Rb2
      • 2.Rc5#
    • 1...Rxd2
      • 2.Rc5#
    • 1...Rc4
      • 2.bxc4#
    • 1...Rc5
      • 2.Rxc5#
    • 1...Sfd4
      • 2.Sc7#
    • 1...Scd4
      • 2.Sef4#
    • 1...Se5
      • 2.Sgf4#
  • Tries
    • 1.Rdxc2?
      • threat
        • 2.Rc5#
      • 1...Bxc2
        • 2.Bc4#
      • 1...Bc4
        • 2.Bxc4#
        • 2.bxc4#
      • 1...exf3!
    • 1.Rxd3+?
      • 1...Sfd4
        • 2.Sc7#
      • 1...Scd4
        • 2.Sef4#
      • 1...exd3!
  • Keys
    • 1.Bg2!
      • threat
        • 2.fxe4#
      • 1...Rxd2
        • 2.Rc5#
      • 1...exf3
        • 2.Bxf3#
      • 1...Rc4
        • 2.bxc4#
      • 1...Sfd4
        • 2.Sc7#
      • 1...Scd4
        • 2.Sef4#
      • 1...e3
        • 2.f4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(a);OGATE::R1(A)
    • R(a);N_SPINB(b),OGATE,P_SPINB(h),XR(C)::R1(A)
    • R(a);OGATE::P(D),XR(a)
    • R(a);OGATE::R1(A),XR(a)
    • S(f);N_SPINB(b),P_SPINB(h),SBLOCK::S(H)
    • S(g);N_SPINB(b),P_SPINB(h),SBLOCK::S(H)
    • S(g);SBLOCK::S(I)
  • Tries
    • Try
      • R(C);N_PINB(b),P_PINB(h),XR(a)
      • Threat
        • R1(C)
      • Vars
        • B(b);OGATE,XR(C)::B(B)
      • Refutation
        • P(d);XP(E)
    • Try
      • R(C);CHECK,P_PINB(h),XB(b)
      • Vars
        • S(f);P_SPINS(f)::S(H)
        • S(g);P_SPINS(g)::S(H)
      • Refutation
        • P(d);XR(C)
  • Actual
    • B(B);
    • Threat
      • P(E),XP(d)
    • Vars
      • R(a);N_SPINB(b),OGATE,P_SPINB(h),XR(C)::R1(A)
      • P(d);OGATE,P_SPINP(d),XP(E)::B(B),XP(d)
      • R(a);OGATE::P(D),XR(a)
      • S(f);N_SPINB(b),P_SPINB(h),SBLOCK::S(H)
      • S(g);N_SPINB(b),P_SPINB(h),SBLOCK::S(H)
      • P(d);::B(B)+P(E)


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).