MESON Chess Problem Database

Problem Display
PID: 175779 (8/2B1NB2/3rp3/2n5/3k1n2/1PpbR3/Q2R1P1K/8 w - - 0 1)

Minker, HM

Philadelphia Times, 1898

8/2B1NB2/3rp3/2n5/3k1n2/1PpbR3/Q2R1P1K/8

#2

9 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Sc6#
    • 1...Ra6
      • 2.Be5#
    • 1...Rb6
      • 2.Be5#
    • 1...Rc6
      • 2.Be5#
    • 1...Rd7
      • 2.Be5#
    • 1...Rd8
      • 2.Be5#
    • 1...cxd2
      • 2.Qa1#
      • 2.Qb2#
    • 1...c2
      • 2.Qa1#
      • 2.Qb2#
    • 1...e5
      • 2.Sf5#
  • Tries
    • 1.Bb6?
      • threat
        • 2.Qa4#
      • 1...cxd2
        • 2.Qa1#
        • 2.Qb2#
      • 1...c2
        • 2.Qa1#
        • 2.Qb2#
      • 1...Sd5
        • 2.Rdxd3#
      • 1...Rxb6!
  • Keys
    • 1.Qa7!
      • 1...cxd2
        • 2.Qa1#
      • 1...c2
        • 2.Qa1#
      • 1...Sd5
        • 2.Rdxd3#
      • 1...Rd5
        • 2.Sc6#
      • 1...Ra6
        • 2.Be5#
      • 1...Rb6
        • 2.Be5#
      • 1...Rc6
        • 2.Be5#
      • 1...Rd7
        • 2.Be5#
      • 1...Rd8
        • 2.Be5#
      • 1...Se2
        • 2.Rdxd3#
      • 1...Sg2
        • 2.Rdxd3#
      • 1...Sh3
        • 2.Rdxd3#
      • 1...Sh5
        • 2.Rdxd3#
      • 1...Sg6
        • 2.Rdxd3#
      • 1...e5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(f);N_GUARD,SBLOCK::S(H)
    • R(f);OGATE::B(G)
    • P(g);N_GUARD::S(H)
  • Tries
    • Try
      • B(G);P_PINS(e)
      • Threat
        • QAR(A)
      • Vars
        • S(d);N_GUARD::R1(B),XB(b)
      • Refutation
        • R(f);N_SPINS(e),XB(G)
  • Actual
    • Q(A);P_PINS(e)
    • Vars
      • P(a);N_SPINB(b),OGATEB,XR(B)::QAB(A)
      • P(a);OGATEB::QAB(A)
      • S(d);N_GUARD::R1(B),XB(b)
      • R(f);N_GUARD,SBLOCK::S(H)
      • R(f);OGATE::B(G)
      • R(f);N_SPINS(e),OGATE::B(G)
      • P(g);N_GUARD::S(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).