MESON Chess Problem Database

Problem Display
PID: 269270 (5Q2/r1p2p2/1N2k1p1/NbP5/B2KP2P/3R2p1/1B3r2/5R2 w - - 0 1)

Chicco, Adriano

Schackvarlden, 1932

5Q2/r1p2p2/1N2k1p1/NbP5/B2KP2P/3R2p1/1B3r2/5R2

#2

11 + 8

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Kd5#
    • 1...Rxb2
      • 2.Qxf7#
    • 1...Rc2
      • 2.Qxf7#
    • 1...Rd2
      • 2.Qxf7#
    • 1...Re2
      • 2.Qxf7#
    • 1...Rg2
      • 2.Qxf7#
    • 1...Rh2
      • 2.Qxf7#
    • 1...cxb6
      • 2.Qd6#
    • 1...c6
      • 2.Qd6#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Qe7#
      • 1...c6
        • 2.Qd6#
      • 1...Kd7!
    • 1.Bb3+?
      • 1...Kf6
        • 2.Ke3#
        • 2.Kd5#
        • 2.Qxf7#
      • 1...Bc4!
    • 1.Qe8+?
      • 1...Kf6
        • 2.Ke3#
        • 2.Kd5#
        • 2.Qe5#
      • 1...Bxe8!
  • Keys
    • 1.Sc8!
      • threat
        • 2.Qe7#
      • 1...Kf6
        • 2.Kd5#
      • 1...Kd7
        • 2.Ke5#
      • 1...c6
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • K(d);P-FLIGHT,P_SPINP(h),P_SPINR(a)::B(B)+K(E)
    • R(a);N_GUARD,XB(B)::QAB1(K),XP(h)
    • R(a);N_GUARD::QAB1(K),XP(h)
    • R(a);N_GUARD,P_PINR(C)::QAB1(K),XP(h)
    • P(g);N_GUARD,XS(J)::QAR1(K)
    • P(g);N_GUARD::QAR1(K)
  • Tries
    • Try
      • S(J);
      • Threat
        • QAR1(K)
      • Vars
        • P(g);N_GUARD::QAR1(K)
      • Refutation
        • K(d);P_SPINB(c),S_FLIGHT
    • Try
      • B(D);CHECK
      • Refutation
        • B(c);P_SPINB(c)
    • Try
      • Q(K);CHECK
      • Refutation
        • B(c);XQ(K)
  • Actual
    • S(J);
    • Threat
      • QAR1(K)
    • Vars
      • K(d);P-FLIGHT,P_SPINP(h),P_SPINR(a)::B(B)+K(E)
      • K(d);P_SPINB(c),S_FLIGHT::R(C)+K(E)
      • P(g);N_GUARD::QAR1(K)
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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).