MESON Chess Problem Database

Problem Display
PID: 101309 (1B1K4/4pb2/1p2kp2/2bN4/1p2P3/1B2pN2/2rr4/8 w - - 0 1)

Bottacchi, Antonio

Good Companions, 1920

1B1K4/4pb2/1p2kp2/2bN4/1p2P3/1B2pN2/2rr4/8

#2

6 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re2
      • 2.Sc3#
      • 2.Sf4#
    • 1...Rf2
      • 2.Sc3#
      • 2.Sf4#
    • 1...Rg2
      • 2.Sc3#
      • 2.Sf4#
    • 1...Rh2
      • 2.Sc3#
      • 2.Sf4#
    • 1...Rxd5+
      • 2.Bxd5#
    • 1...Bd4
      • 2.Sc3#
      • 2.Sf4#
    • 1...Bd6
      • 2.Sf4#
      • 2.Sc7#
    • 1...f5
      • 2.Sg5#
  • Tries
    • 1.Sd4+?
      • 1...Bxd4
        • 2.Sc3#
        • 2.Sf4#
      • 1...Rxd4!
  • Keys
    • 1.Kc8!
      • threat
        • 2.Sf4#
      • 1...Bd4+
        • 2.Sc3#
      • 1...Bd6+
        • 2.Sc7#
      • 1...Rxd5
        • 2.Bxd5#
      • 1...f5
        • 2.Sg5#

This is a version of 64655

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(b);CHECK,OGATE,P_SPINR(b),XS(D)::B(A),XR(b)
    • P(h);N_GUARD::S(B)
  • Tries
    • Try
      • S(B);CHECK,N_SPINS(D)
      • Refutation
        • R(b);P_PINS(D),XS(B)
  • Actual
    • K(F);N_SPINS(D),P-FLIGHT
    • Threat
      • B(A)+S(D),DCHECK
    • Vars
      • B(e);CHECK,S_CUTR(b)::B(A)+S(D)
      • B(e);CHECK,SBLOCK::B(A)+S(D),DCHECK
      • R(b);OGATE,P_SPINR(b),XS(D)::B(A),XR(b)
      • P(h);N_GUARD::S(B)
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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).