MESON Chess Problem Database

Problem Display
PID: 174347 (n3b1qb/8/1R1pQ2r/B1k1n3/2P2Rp1/1B1p2r1/1P6/K3N3 w - - 0 1)

Kiss, Janos

8th Comm., Boletim da UBP, 1986-1987

n3b1qb/8/1R1pQ2r/B1k1n3/2P2Rp1/1B1p2r1/1P6/K3N3

#2

9 + 11

1077 Boletim da UBP 1989

SOLUTION

  • SOUND
  • Sets
    • 1...Qh7
      • 2.Qd5#
    • 1...Qg5
      • 2.Qd5#
    • 1...Qg6
      • 2.Qd5#
    • 1...Qg7
      • 2.Qd5#
    • 1...Qf8
      • 2.Qd5#
    • 1...Rh1
      • 2.Qxd6#
    • 1...Rh2
      • 2.Qxd6#
    • 1...Rh3
      • 2.Qxd6#
    • 1...Rh4
      • 2.Qxd6#
    • 1...Rh5
      • 2.Qxd6#
    • 1...Rh7
      • 2.Qxd6#
    • 1...Bg6
      • 2.Qxd6#
    • 1...Bf6
      • 2.Qxd6#
    • 1...Sf3
      • 2.Sxd3#
    • 1...Sxc4
      • 2.Rxc4#
    • 1...Sc6
      • 2.Rb5#
    • 1...Sg6
      • 2.Qxd6#
    • 1...Sf7
      • 2.Qd5#
    • 1...d5
      • 2.Bb4#
  • Tries
    • 1.Qc8+?
      • 1...Bc6
        • 2.Rb5#
      • 1...Sc6
        • 2.Rb5#
      • 1...Sc7!
  • Keys
    • 1.Ba4!
      • threat
        • 2.b4#
      • 1...Sxc4
        • 2.Rxc4#
      • 1...Sd7
        • 2.Rc6#
      • 1...Sf3
        • 2.Sxd3#
      • 1...Sc6
        • 2.Rb5#
      • 1...Sg6
        • 2.Qxd6#
      • 1...Sf7
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 14
  • Sets
    • Q(j);N_GUARD::QAR1(I)
    • R(g);N_GUARD,P_PINS(B)::QAB1(I),XP(f)
    • R(g);N_GUARD::QAB1(I),XP(f)
    • B(i);S_CUTR(g)::QAB1(I),XP(f)
    • B(k);S_CUTR(g)::QAB1(I),XP(f)
    • S(e);N_GUARD,P_PINP(C),S_CUTR(b)::S(B),XP(a)
    • S(e);OGATE,P_PINP(C),XP(E)::R1(F),XS(e)
    • S(e);P_PINP(C),SBLOCK,S_CUTB(i)::R1(H)
    • S(e);P_PINP(C),S_CUTR(g)::QAB1(I),XP(f)
    • S(e);P_PINP(C),S_CUTQ(j)::QAR1(I)
    • P(f);::B(G)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • B(i);P_SPINB(i)::R1(H)
        • S(e);P_PINP(C),P_SPINS(e)::R1(H)
      • Refutation
        • S(h);P_SPINS(h)
  • Actual
    • B(D);
    • Threat
      • P(C)
    • Vars
      • S(e);OGATE,P_PINP(C),XP(E)::R1(F),XS(e)
      • S(e);N_GUARD,P_PINP(C),S_CUTB(i)::R1(H)
      • S(e);N_GUARD,P_PINP(C),S_CUTR(b)::S(B),XP(a)
      • S(e);P_PINP(C),SBLOCK,S_CUTB(i)::R1(H)
      • S(e);P_PINP(C),S_CUTR(g)::QAB1(I),XP(f)
      • S(e);P_PINP(C),S_CUTQ(j)::QAR1(I)
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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).