MESON Chess Problem Database

Problem Display
PID: 59803 (2n1R3/qN1p4/1Q6/3kPBp1/1P1p4/1P1n4/5P2/B2R1Kb1 w - - 0 1)

Paslack, Rainer

StrateGems, 2005

2n1R3/qN1p4/1Q6/3kPBp1/1P1p4/1P1n4/5P2/B2R1Kb1

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb7
      • 2.Qxb7#
    • 1...Sc1
      • 2.Rxd4#
    • 1...Se1
      • 2.Rxd4#
    • 1...Sb2
      • 2.Rxd4#
    • 1...Sxf2
      • 2.Rxd4#
    • 1...Sxb4
      • 2.Rxd4#
    • 1...Sf4
      • 2.Rxd4#
    • 1...Sc5
      • 2.Rxd4#
    • 1...Sxe5
      • 2.Rxd4#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Se7
      • 2.Qd6#
  • Tries
    • 1.Sd6?
      • threat
        • 2.Be4#
      • 1...Sxf2
        • 2.Rxd4#
      • 1...Sxd6
        • 2.Qxd6#
      • 1...Sc5
        • 2.Rxd4#
      • 1...Se7!
    • 1.Qb5+?
      • 1...Sc5
        • 2.Rxd4#
      • 1...Qc5!
    • 1.Qg6?
      • threat
        • 2.Be4#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Se7
        • 2.Qd6#
      • 1...Sc5
        • 2.Rxd4#
      • 1...Sxf2!
    • 1.f3?
      • threat
        • 2.Be4#
      • 1...Se7
        • 2.Qd6#
      • 1...Sf2
        • 2.Rxd4#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sc5!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Be4#
      • 1...Sxf2
        • 2.Rxd4#
      • 1...Sxc5
        • 2.Rxd4#
      • 1...Se7
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • Q(f);OGATE,XS(J)::QAB(I),XQ(f)
    • S(b);OGATE,P_SPINP(c)::R1(B),XP(c)
    • S(b);OGATE,P_SPINP(c),XP(D)::R1(B),XP(c)
    • S(b);OGATE,P_SPINP(c),XP(F)::R1(B),XP(c)
    • S(b);OGATE,P_SPINP(c),XP(G)::R1(B),XP(c)
    • S(h);N_GUARD::QAR1(I),XS(h)
    • S(h);N_GUARD::QAR1(I)
  • Tries
    • Try
      • S(J);
      • Threat
        • B(H)
      • Vars
        • S(b);OGATE,P_SPINP(c),XP(D)::R1(B),XP(c)
        • S(h);OGATE,XS(J)::QAR1(I),XS(h)
        • S(b);OGATE,P_SPINP(c)::R1(B),XP(c)
      • Refutation
        • S(h);
    • Try
      • Q(I);CHECK
      • Vars
        • S(b);OGATE,P_SPINP(c),P_SPINS(b)::R1(B),XP(c)
      • Refutation
        • Q(f);P_SPINQ(f)
    • Try
      • Q(I);
      • Threat
        • B(H)
      • Vars
        • S(h);N_GUARD::QAR1(I),XS(h)
        • S(h);N_GUARD::QAR1(I)
        • S(b);OGATE,P_SPINP(c)::R1(B),XP(c)
      • Refutation
        • S(b);P_SPINP(c),XP(D)
    • Try
      • P(D);
      • Threat
        • B(H)
      • Vars
        • S(h);N_GUARD::QAR1(I)
        • S(b);OGATE,P_SPINP(c)::R1(B),XP(c)
        • S(h);N_GUARD::QAR1(I),XS(h)
      • Refutation
        • S(b);P_SPINP(c)
  • Actual
    • S(J);
    • Threat
      • B(H)
    • Vars
      • S(b);OGATE,P_SPINP(c),XP(D)::R1(B),XP(c)
      • S(b);OGATE,P_SPINP(c),XS(J)::R1(B),XP(c)
      • S(h);N_GUARD::QAR1(I)
      • S(h);N_GUARD::QAR1(I),XS(h)
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).