Problem Display
PID: 35206 (8/2K2PB1/3pp2r/N2k4/3P1pB1/6n1/2PRbPP1/Q3Rn2 w - - 0 1)

Seider, Shlomo

Tauber, Theodor

2nd HM., Israel Ring Ty., 1984

8/2K2PB1/3pp2r/N2k4/3P1pB1/6n1/2PRbPP1/Q3Rn2

#2

12 + 8


721 Variantim 1988
3674 As in all Arts 1996

SOLUTION


  • SOUND
  • Sets
    • 1...Bd1
      • 2.Qa2#
      • 2.c4#
    • 1...Bf3
      • 2.Qa2#
      • 2.c4#
    • 1...Bxg4
      • 2.Qa2#
      • 2.c4#
  • Tries
    • 1.Bf3+?
      • 1...Bxf3
        • 2.Qa2#
        • 2.c4#
      • 1...Se4!
    • 1.Qc3?
      • threat
        • 2.Qc6#
      • 1...Ke4
        • 2.Qf3#
      • 1...Bc4
        • 2.Qxc4#
      • 1...Bb5!
    • 1.Qb1?
      • threat
        • 2.Qb7#
      • 1...Ke4
        • 2.c4#
      • 1...Bb5
        • 2.Qxb5#
      • 1...Ba6!
    • 1.Qa2+?
      • 1...Bc4
        • 2.Qxc4#
      • 1...Ke4!
    • 1.c4+?
      • 1...Ke4
        • 2.Qb1#
      • 1...Bxc4!
    • 1.f8Q?
      • threat
        • 2.Qa8#
      • 1...Ke4
        • 2.Bf3#
      • 1...Bb5
        • 2.Qxd6#
      • 1...Ba6
        • 2.Qxd6#
      • 1...Rh8!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qc6#
      • 1...Ke4
        • 2.d5#
      • 1...Bb5
        • 2.Qxb5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(H);CHECK
      • Refutation
        • S(c);P_SPINS(c)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(e);P_SPINB(b),S_FLIGHT::QAB1(A)
        • B(b);N_GUARD::QAB1(A),XB(b)
      • Refutation
        • B(b);
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • K(e);P_SPINB(b),S_FLIGHT::QAB(A)+P(C)
        • B(b);N_GUARD::QAR2(A),XB(b)
      • Refutation
        • B(b);
    • Try
      • Q(A);CHECK
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAB1(A),XB(b)
      • Refutation
        • K(e);P_SPINB(b),S_FLIGHT
    • Try
      • P(C);CHECK
      • Vars
        • K(e);P_SPINB(b),S_FLIGHT::QAB(A)
      • Refutation
        • B(b);XP(C)
    • Try
      • P(K);
      • Threat
        • QAB(K)
      • Vars
        • K(e);P_SPINB(b),S_FLIGHT::B(H)
        • B(b);::QAR1(K),XP(f)
      • Refutation
        • R(h);
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(e);OGATE,P_SPINB(b),S_FLIGHT::QAR(A)+P(G)
      • B(b);N_GUARD::QAR2(A),XB(b)


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).