MESON Chess Problem Database

Problem Display
PID: 156916 (1n2k2n/3pp1Kb/1B6/8/8/7Q/3R4/8 w - - 0 1)

Adamski, Eduard

Znamya Junosti, 1974

1n2k2n/3pp1Kb/1B6/8/8/7Q/3R4/8

#2

4 + 6

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qxh8#
    • 1...Bc2
      • 2.Qxh8#
    • 1...Bd3
      • 2.Qxh8#
    • 1...Be4
      • 2.Qxh8#
    • 1...Bf5
      • 2.Qxh8#
    • 1...Bg6
      • 2.Qxh8#
    • 1...Sa6
      • 2.Qxd7#
    • 1...Sc6
      • 2.Qxd7#
    • 1...d5
      • 2.Qc8#
    • 1...d6
      • 2.Qc8#
  • Tries
    • 1.Qf5?
      • threat
        • 2.Qf8#
      • 1...Sg6
        • 2.Qf7#
      • 1...Sf7
        • 2.Qxf7#
      • 1...d5
        • 2.Qc8#
      • 1...d6
        • 2.Qc8#
      • 1...Bxf5!
    • 1.Qh5+?
      • 1...Bg6
        • 2.Qxh8#
      • 1...Sf7
        • 2.Qxf7#
      • 1...Sg6!
  • Keys
    • 1.Qe6!
      • 1...dxe6
        • 2.Rd8#
      • 1...Bg8
        • 2.Qxg8#
      • 1...Bb1
        • 2.Qg8#
      • 1...Bc2
        • 2.Qg8#
      • 1...Bd3
        • 2.Qg8#
      • 1...Be4
        • 2.Qg8#
      • 1...Bf5
        • 2.Qg8#
      • 1...Bg6
        • 2.Qg8#
      • 1...Sa6
        • 2.Qxd7#
      • 1...Sc6
        • 2.Qxd7#
      • 1...Sg6
        • 2.Qf7#
      • 1...Sf7
        • 2.Qxf7#
      • 1...d5
        • 2.Qc8#
      • 1...d6
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 6
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(c);OGATE::QAR(B),XS(f)
    • S(d);N_GUARD::QAB1(B),XP(a)
    • P(a);OGATE::QAR2(B)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • S(f);N_GUARD::QAB1(B)
        • S(f);N_GUARD::QAB1(B),XS(f)
        • P(a);OGATE::QAR2(B)
      • Refutation
        • B(c);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • B(c);OGATE,P_SPINB(c)::QAR(B),XS(f)
        • S(f);N_GUARD,P_SPINS(f)::QAB1(B),XS(f)
      • Refutation
        • S(f);P_SPINS(f)
  • Actual
    • Q(B);P_PINP(b)
    • Vars
      • P(a);N_SPINP(b),OGATE,XQ(B)::R1(A)
      • B(c);N_GUARD::QAR2(B),XB(c)
      • B(c);N_GUARD::QAR2(B)
      • S(d);N_GUARD::QAB1(B),XP(a)
      • S(f);N_GUARD::QAB1(B)
      • S(f);N_GUARD::QAB1(B),XS(f)
      • P(a);OGATE::QAR2(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).