MESON Chess Problem Database

Problem Display
PID: 235399 (1n2k1KR/1p2Pppp/nN1pR3/3Q4/6r1/7r/p7/bb6 w - - 0 1)

Paslack, Rainer

Gaudium, 2011

1n2k1KR/1p2Pppp/nN1pR3/3Q4/6r1/7r/p7/bb6

#2

6 + 13

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Kxh7#
    • 1...Rd4
      • 2.Kxg7#
  • Tries
    • 1.Re4?
      • threat
        • 2.Qxf7#
      • 1...Rf3
        • 2.Kxh7#
      • 1...f5
        • 2.Qf7#
      • 1...f6
        • 2.Qf7#
      • 1...Rf4!
    • 1.Re5?
      • threat
        • 2.Qxf7#
      • 1...Rf4
        • 2.Kxg7#
      • 1...Bg6
        • 2.Kxg7#
      • 1...f5
        • 2.Qf7#
      • 1...f6
        • 2.Qf7#
      • 1...Rf3!
    • 1.Qb5+?
      • 1...Sd7
        • 2.Qxd7#
      • 1...Sc6!
  • Keys
    • 1.Qxd6!
      • threat
        • 2.Qd8#
      • 1...Rd3
        • 2.Kxh7#
      • 1...Rd4
        • 2.Kxg7#
      • 1...Sc6
        • 2.Qd7#
      • 1...Sd7
        • 2.Qxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(d);::R(F)+K(E),XP(k)
    • R(e);::R(F)+K(E),XP(j)
  • Tries
    • Try
      • R(C);
      • Threat
        • QAB1(A),XP(i)
      • Vars
        • R(d);::R(F)+K(E),XP(k)
        • P(i);::QAB1(A)
      • Refutation
        • R(e);
    • Try
      • R(C);
      • Threat
        • QAB1(A),XP(i)
      • Vars
        • R(e);::R(F)+K(E),XP(j)
        • B(b);::R(F)+K(E),XP(j)
        • P(i);::QAB1(A)
      • Refutation
        • R(d);
    • Try
      • Q(A);CHECK
      • Vars
        • S(l);N_GUARD,P_SPINS(l)::QAB1(A),XS(l)
      • Refutation
        • S(l);P_SPINS(l)
  • Actual
    • Q(A);XP(g)
    • Threat
      • QAR1(A)
    • Vars
      • R(d);::R(F)+K(E),XP(k)
      • R(e);::R(F)+K(E),XP(j)
      • S(l);N_GUARD::QAB1(A)
      • S(l);N_GUARD::QAB1(A),XS(l)
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).