MESON Chess Problem Database

Problem Display
PID: 46835 (2Rr4/3N2B1/1Kn5/4p3/1p1k2Nr/1P4bQ/P1npPP2/1bR4B w - - 0 1)

Issler, Werner

2nd Prize, Pfalzischer Schachverband, 1961

2Rr4/3N2B1/1Kn5/4p3/1p1k2Nr/1P4bQ/P1npPP2/1bR4B

#2

12 + 10

3749 FIDE Album (1959-1961) 1966

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Bxe5#
    • 1...Bxf2
      • 2.Qd3#
    • 1...Bh2
      • 2.Qd3#
    • 1...Bf4
      • 2.Qd3#
    • 1...Sa1
      • 2.Rc4#
    • 1...Se1
      • 2.Rc4#
    • 1...Se3
      • 2.fxe3#
    • 1...Sa7
      • 2.Rc4#
    • 1...Se7
      • 2.Rc4#
    • 1...Sb8
      • 2.Rc4#
  • Tries
    • 1.Sgxe5?
      • threat
        • 2.Sxc6#
      • 1...Kc3
        • 2.Sg4#
      • 1...Bxe5
        • 2.Qd3#
      • 1...Sxe5
        • 2.Rc4#
      • 1...Sa5
        • 2.Sc6#
      • 1...Sa7
        • 2.Sc6#
        • 2.Rc4#
      • 1...Se7
        • 2.Sc6#
        • 2.Rc4#
      • 1...Sb8
        • 2.Sc6#
        • 2.Rc4#
      • 1...Re4!
    • 1.Bxe5+?
      • 1...Bxe5
        • 2.Qd3#
      • 1...Sxe5!
  • Keys
    • 1.Sdxe5!
      • threat
        • 2.Sxc6#
      • 1...Kc3
        • 2.Sd7#
      • 1...Bxe5
        • 2.Qd3#
      • 1...Sxe5
        • 2.Rc4#
      • 1...Sa5
        • 2.Sc6#
      • 1...Sa7
        • 2.Sc6#
        • 2.Rc4#
      • 1...Se7
        • 2.Sc6#
        • 2.Rc4#
      • 1...Sb8
        • 2.Sc6#
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 9
  • Sets
    • K(f);P_SPINB(d),P_SPINS(b),S_FLIGHT::B(K),XP(h)
    • B(d);OGATE,XP(E)::QAR1(G)
    • B(d);OGATE::QAR1(G)
    • S(b);OGATE::R1(A)
    • S(b);OGATE::P(E),XS(b)
    • S(i);OGATE::R1(L)
  • Tries
    • Try
      • S(H);XP(h)
      • Threat
        • B(K)+S(H),DCHECK,XS(i)
      • Vars
        • K(f);P_SPINB(d),P_SPINS(b),S_FLIGHT::B(K)+S(H)
        • B(d);OGATE,P_SPINB(d),XS(H)::QAR1(G)
        • S(i);OGATE,P_SPINS(i),XS(H)::R1(L)
        • S(i);::B(K)+S(H),DCHECK
      • Refutation
        • R(g);
    • Try
      • B(K);CHECK,XP(h)
      • Vars
        • B(d);OGATE,XB(K)::QAR1(G)
      • Refutation
        • S(i);XB(K)
  • Actual
    • S(J);XP(h)
    • Threat
      • B(K)+S(J),DCHECK,XS(i)
    • Vars
      • K(f);P_SPINB(d),P_SPINS(b),S_FLIGHT::B(K)+S(J)
      • B(d);OGATE,P_SPINB(d),XS(J)::QAR1(G)
      • S(i);OGATE,P_SPINS(i),XS(J)::R1(L)
      • S(i);::B(K)+S(J),DCHECK
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).