MESON Chess Problem Database

Problem Display
PID: 42395 (6K1/3p1NP1/BnkP1B1R/Q6r/N3P3/8/2b2b2/1r6 w - - 0 1)

Avner, Uri

The Problemist, 1979

6K1/3p1NP1/BnkP1B1R/Q6r/N3P3/8/2b2b2/1r6

#2

10 + 7

3750 FIDE Album (1977-1979) 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Sxa4
      • 2.Qc7#
    • 1...Sc4
      • 2.Qc7#
    • 1...Sc8
      • 2.Qc7#
  • Tries
    • 1.Bb2?
      • threat
        • 2.Sd8#
      • 1...Rxh6
        • 2.Qb5#
      • 1...Bh4
        • 2.Qxb6#
      • 1...Bb3!
    • 1.Bd4?
      • threat
        • 2.Sd8#
      • 1...Rxh6
        • 2.Qc5#
      • 1...Bb3
        • 2.Qxb6#
      • 1...Bh4!
    • 1.Bg5?
      • threat
        • 2.Se5#
        • 2.Sd8#
      • 1...Rxg5
        • 2.Sd8#
      • 1...Bb3
        • 2.Qb5#
      • 1...Rb5
        • 2.Sd8#
        • 2.Qxb5#
      • 1...Bg3
        • 2.Sd8#
        • 2.Qc5#
      • 1...Bd4
        • 2.Sd8#
      • 1...Sc4
        • 2.Sd8#
        • 2.Qc7#
        • 2.Qd5#
      • 1...Rxh6!
  • Keys
    • 1.Be5!
      • threat
        • 2.Sd8#
      • 1...Bb3
        • 2.Qb5#
      • 1...Bh4
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • S(e);OGATE,XS(A)::QAR1(C)
    • S(e);OGATE::QAR1(C)
  • Tries
    • Try
      • B(F);
      • Threat
        • S(H)
      • Vars
        • R(d);N_GUARD,XR(G)::QAB1(C)
        • B(c);N_GUARD::QAR1(C),XS(e)
      • Refutation
        • B(b);P_PINS(H)
    • Try
      • B(F);
      • Threat
        • S(H)
      • Vars
        • R(d);N_GUARD,XR(G)::QAR1(C)
        • B(b);P_PINS(H),S_CUTR(a)::QAR1(C),XS(e)
      • Refutation
        • B(c);
    • Try
      • B(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(d);P_PINP(I),XB(F)::S(H)
        • B(b);P_PINS(H),S_CUTR(a)::QAB1(C)
        • B(c);::S(H)
      • Refutation
        • R(d);XR(G)
  • Actual
    • B(F);
    • Threat
      • S(H)
    • Vars
      • B(b);P_PINS(H),S_CUTR(a)::QAB1(C)
      • B(c);N_GUARD::QAR1(C)
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).