MESON Chess Problem Database

Problem Display
PID: 158463 (5n1B/2N3R1/r1b2Q1K/1p1NnP2/1P1k1p1p/1PpPp3/4Pr2/1B1R4 w - - 0 1)

Navon, Emanuel

Probleemblad, 2015

5n1B/2N3R1/r1b2Q1K/1p1NnP2/1P1k1p1p/1PpPp3/4Pr2/1B1R4

#2

13 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd5
      • 2.Sxb5#
    • 1...f3
      • 2.Rg4#
  • Tries
    • 1.Sxb5+?
      • 1...Kxd5
        • 2.Qd6#
      • 1...Bxb5!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qc5#
      • 1...Sg4+
        • 2.Rxg4#
      • 1...Sf7+
        • 2.Rxf7#
      • 1...Bxd5
        • 2.Sxb5#
      • 1...Sxd3
        • 2.Re7#
      • 1...Bb7
        • 2.Sxb5#
      • 1...Bd7
        • 2.Sb6#
      • 1...Ba8
        • 2.Sxb5#
      • 1...Be8
        • 2.Sb6#
      • 1...Sf3
        • 2.Qxf4#
      • 1...Sc4
        • 2.dxc4#
      • 1...Seg6
        • 2.Rxg6#
      • 1...Sed7
        • 2.Rxd7#
      • 1...Se6
        • 2.Sxe6#
      • 1...Sfd7
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 1
  • Sets
    • B(j);N_GUARD,P_PINQ(I),SBLOCK,XS(G)::S(K),XP(g)
    • P(e);OGATEB::R(L)
  • Tries
    • Try
      • S(K);CHECK,XP(g)
      • Vars
        • K(d);N_SPINS(h),P-FLIGHT,XS(G)::QAR1(I)
      • Refutation
        • B(j);P_PINQ(I),XS(K)
  • Actual
    • Q(I);N_PINS(h)
    • Threat
      • QAB1(I)
    • Vars
      • S(h);CHECK,OGATEB::B(M)+R(L),XS(h)
      • B(j);N_GUARD,P_PINQ(I),P_SPINB(j),XS(G)::S(K),XP(g)
      • S(h);OGATEB,P_SPINS(h),XP(E)::B(M)+R(L)
      • B(j);N_GUARD,P_PINQ(I)::S(K),XP(g)
      • B(j);N_GUARD,P_PINQ(I)::QAR(I)+S(G)
      • S(h);OGATE::QAR2(I),XP(e)
      • S(h);OGATE::R(B)+P(E),XS(h)
      • S(h);OGATEB::B(M)+R(L),XS(h)
      • S(k);N_GUARD::S(K),XS(k)
      • S(k);N_GUARD::S(K)
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).