MESON Chess Problem Database

Problem Display
PID: 73857 (1r4q1/1N6/4n2Q/B1p1b1r1/P1k1p2R/3R1B2/1P2P1n1/K2N3b w - - 0 1)

Horehner, A

Tijdschrift vd KNSB, 1938

1r4q1/1N6/4n2Q/B1p1b1r1/P1k1p2R/3R1B2/1P2P1n1/K2N3b

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qh7
      • 2.Qxe6#
    • 1...Qg7
      • 2.Qxe6#
    • 1...Qf8
      • 2.Qxe6#
    • 1...Qh8
      • 2.Qxe6#
    • 1...Bxb2+
      • 2.Sxb2#
    • 1...Bh2
      • 2.b3#
    • 1...Bg3
      • 2.b3#
    • 1...Bf4
      • 2.b3#
    • 1...Bd6
      • 2.Sxd6#
      • 2.b3#
    • 1...Bf6
      • 2.Sd6#
    • 1...Bc7
      • 2.b3#
    • 1...Bg7
      • 2.Sd6#
    • 1...Bh8
      • 2.Sd6#
    • 1...Se1
      • 2.Se3#
    • 1...Se3
      • 2.Sxe3#
    • 1...Sgf4
      • 2.Se3#
    • 1...Sxh4
      • 2.Se3#
    • 1...Sef4
      • 2.Qa6#
    • 1...Sg7
      • 2.Qa6#
    • 1...Sd8
      • 2.Qa6#
    • 1...Sf8
      • 2.Qa6#
  • Keys
    • 1.Bxe4!
      • threat
        • 2.Bd5#
      • 1...Bxb2+
        • 2.Sxb2#
      • 1...Sxh4
        • 2.Se3#
      • 1...Bd4
        • 2.Sd6#
      • 1...Bf4
        • 2.b3#
      • 1...Sgf4
        • 2.Se3#
      • 1...Sd4
        • 2.Rc3#
      • 1...Sef4
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 15
  • Sets
    • Q(j);N_GUARD::QAB(J),XS(h)
    • B(f);CHECK,XP(C)::S(B),XB(f)
    • B(f);N_PINP(C)::P(C)
    • B(f);N_PINP(C),N_SPINP(d)::P(C)
    • B(f);N_GUARD::S(K)
    • S(b);N_GUARD::S(B)
    • S(b);N_GUARD::S(B),XS(b)
    • S(b);N_GUARD,N_SPINP(d)::S(B)
    • S(b);N_GUARD,N_SPINP(d),XR(H)::S(B)
    • S(h);N_SPINP(d),OGATE::QAB(J)
    • S(h);OGATE::QAB(J)
  • Actual
    • B(F);XP(d)
    • Threat
      • R(H)+B(F),DCHECK
    • Vars
      • B(f);CHECK,XP(C)::S(B),XB(f)
      • S(b);N_GUARD,XR(H)::S(B)
      • B(f);N_GUARD::S(K)
      • B(f);N_PINP(C)::P(C)
      • S(b);N_GUARD::S(B)
      • S(h);N_PINP(C),SBLOCK,S_CUTB(f)::R1(E)
      • S(h);OGATE::QAB(J)
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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).