MESON Chess Problem Database

Problem Display
PID: 34317 (n1R3R1/1KQ3rr/1p2P3/1P5p/6kP/2p1pNp1/6P1/1BB3b1 w - - 0 1)

Fasano, Alessandro

3rd Comm., Probleemblad, 2001

n1R3R1/1KQ3rr/1p2P3/1P5p/6kP/2p1pNp1/6P1/1BB3b1

#2

11 + 10

102 Probleemblad 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Rg5
      • 2.Rxg5#
    • 1...Rg6
      • 2.Rxg6#
    • 1...Rh8
      • 2.Rxg7#
  • Tries
    • 1.Kxa8?
      • threat
        • 2.Qc4#
      • 1...e2
        • 2.Qf4#
      • 1...c2!
    • 1.Rcf8?
      • threat
        • 2.Bf5#
        • 2.Rf4#
      • 1...c2
        • 2.Rf4#
      • 1...Sxc7!
    • 1.Qd7?
      • threat
        • 2.Rc4#
      • 1...Kf4
        • 2.Rc4#
      • 1...e2
        • 2.e7#
      • 1...Sc7
        • 2.Qd4#
      • 1...c2!
    • 1.Qe7?
      • threat
        • 2.Rc4#
      • 1...Kf4
        • 2.Rc4#
      • 1...e2
        • 2.Se5#
      • 1...Sc7
        • 2.Qb4#
      • 1...c2!
    • 1.Qxg7+?
      • 1...Kf4
        • 2.Rc4#
        • 2.Rcf8#
        • 2.Rgf8#
      • 1...Rxg7+!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Rc4#
      • 1...e2
        • 2.Bf5#
      • 1...Sc7
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(h);OGATE::R1(K),XR(h)
    • R(h);OGATE::R(K),XR(h)
    • R(i);N_GUARD::R(K),XR(h)
  • Tries
    • Try
      • K(H);N_SPINQ(I),S_FLIGHT,XS(j)
      • Threat
        • QAR(I)
      • Vars
        • P(c);::QAR1(I)
      • Refutation
        • P(b);
    • Try
      • R(J);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::R1(J)
      • Refutation
        • S(j);XQ(I)
    • Try
      • Q(I);
      • Threat
        • R(J)
      • Vars
        • K(e);N_SPINR(h),P-FLIGHT,P_SPINP(c)::R(J)
        • P(c);::QAB(I)+P(G)
        • S(j);N_PINQ(I)::QAR(I)
      • Refutation
        • P(b);
    • Try
      • Q(I);
      • Threat
        • R(J)
      • Vars
        • K(e);N_SPINR(h),P-FLIGHT,P_SPINP(c)::R(J)
        • P(c);::S(D)
        • S(j);N_PINQ(I)::QAR(I)
      • Refutation
        • P(b);
    • Try
      • Q(I);CHECK,XR(h)
      • Refutation
        • R(i);CHECK,P_SPINR(i),XQ(I)
  • Actual
    • Q(I);
    • Threat
      • R(J)
    • Vars
      • P(c);::B(A)
      • S(j);N_PINQ(I)::QAB1(I)
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).