MESON Chess Problem Database

Problem Display
PID: 273938 (2B1qb1B/3pp3/2Q3p1/R1N1Pk2/KR4pP/1p4P1/8/1b3r2 w - - 0 1)

Paslack, Rainer

Die Schwalbe, 2023

2B1qb1B/3pp3/2Q3p1/R1N1Pk2/KR4pP/1p4P1/8/1b3r2

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Rf4#
    • 1...Rd1
      • 2.Rf4#
    • 1...Re1
      • 2.Rf4#
    • 1...Rg1
      • 2.Rf4#
    • 1...Rh1
      • 2.Rf4#
    • 1...Rf4
      • 2.Rxf4#
    • 1...Ba2
      • 2.Qe4#
    • 1...Be4
      • 2.Qxe4#
  • Tries
    • 1.Sxb3?
      • threat
        • 2.Sd4#
      • 1...Rd1
        • 2.Rf4#
      • 1...Rf4
        • 2.Rxf4#
      • 1...Bc2!
    • 1.Qf3+?
      • 1...gxf3
        • 2.Rf4#
        • 2.g4#
      • 1...Rxf3!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sd4#
      • 1...dxc6
        • 2.Sg7#
      • 1...dxe6
        • 2.Bxe6#
      • 1...Rd1
        • 2.Rf4#
      • 1...Rf4
        • 2.Rxf4#
      • 1...d5
        • 2.exd5 ep#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(b);N_GUARD::R1(C)
    • R(b);N_GUARD,P_PINR(C)::R1(C),XR(b)
    • B(a);N_GUARD::QAB1(H)
    • B(a);N_GUARD::QAB1(H),XB(a)
  • Tries
    • Try
      • S(F);XP(c)
      • Threat
        • S(F)
      • Vars
        • R(b);N_GUARD::R1(C)
        • R(b);N_GUARD,P_PINR(C)::R1(C),XR(b)
      • Refutation
        • B(a);P_PINS(F)
    • Try
      • Q(H);CHECK
      • Refutation
        • R(b);XQ(H)
  • Actual
    • S(F);N_PINP(g)
    • Threat
      • S(F)
    • Vars
      • P(g);XQ(H)::B(I)+S(F),DCHECK
      • P(g);OGATE,P_PINQ(H),P_SPINP(g),XS(F)::B(I),XP(g)
      • R(b);N_GUARD::R1(C)
      • R(b);N_GUARD,P_PINR(C)::R1(C),XR(b)
      • P(g);OGATE,P_PINQ(H)::R(E)+P(G),XP(g),EP
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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).