MESON Chess Problem Database

Problem Display
PID: 157956 (kN2B1R1/8/1KP5/BpP4b/8/R4rr1/3b3Q/1q6 w - - 0 1)

Apro, Laszlo

Schackvarlden, 1932

kN2B1R1/8/1KP5/BpP4b/8/R4rr1/3b3Q/1q6

#2

9 + 7

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kxb8
      • 2.Bf7#
    • 1...Rg1
      • 2.Bc3#
    • 1...Rg2
      • 2.Bc3#
    • 1...Rh3
      • 2.Bc3#
    • 1...Rg5
      • 2.Bc3#
    • 1...Rg6
      • 2.Bc3#
    • 1...Rxg8
      • 2.Bc3#
  • Tries
    • 1.Bxd2+?
      • 1...Kxb8
        • 2.Bf7#
      • 1...Rxa3!
    • 1.Bb4+?
      • 1...Kxb8
        • 2.Bf7#
      • 1...Rxa3!
  • Keys
    • 1.Bc3+!
      • 1...Kxb8
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • K(g);OGATEB,P-FLIGHT,P_SPINR(d),XS(G)::R(I)+B(H)
    • R(d);::R(B)+B(C)
    • R(d);P_PINP(F)::R(B)+B(C)
    • R(d);XR(I)::R(B)+B(C)
  • Tries
    • Try
      • B(C);CHECK,XB(b)
      • Vars
        • K(g);P-FLIGHT,P_SPINR(d),XS(G)::R(I)+B(H)
      • Refutation
        • R(c);XR(B)
    • Try
      • B(C);CHECK
      • Vars
        • K(g);P-FLIGHT,P_SPINR(d),XS(G)::R(I)+B(H)
      • Refutation
        • R(c);XR(B)
  • Actual
    • B(C);CHECK
    • Vars
      • K(g);P-FLIGHT,P_SPINR(d),XS(G)::R(I)+B(H)
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).