MESON Chess Problem Database

Problem Display
PID: 274579 (2R4q/3pNp2/5p2/4kPp1/KBP5/5Qp1/5Pn1/8 w - - 0 1)

Leu, Gheorghe

Buletin Problemistic, 1998

2R4q/3pNp2/5p2/4kPp1/KBP5/5Qp1/5Pn1/8

#2

8 + 8

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Bc3#
      • 2.Qd5#
    • 1...Se1
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...Sf4
      • 2.Qe3#
    • 1...Sh4
      • 2.Qe3#
    • 1...d5
      • 2.Sc6#
    • 1...d6
      • 2.Sc6#
      • 2.Bc3#
  • Tries
    • 1.Sg6+?
      • 1...Kd4
        • 2.Bc3#
        • 2.Qd5#
      • 1...fxg6!
    • 1.Rc5+?
      • 1...Kd4
        • 2.Qd5#
      • 1...d5
        • 2.Rxd5#
      • 1...Kd6!
    • 1.Re8?
      • threat
        • 2.Sc6#
      • 1...Kd4
        • 2.Qd5#
      • 1...Sf4
        • 2.Qe3#
      • 1...Qxe8!
    • 1.Qe2+?
      • 1...Kf4
        • 2.Bd6#
      • 1...Se3
        • 2.Qxe3#
      • 1...Kd4!
    • 1.c5?
      • threat
        • 2.Bc3#
      • 1...Kd4
        • 2.Qd5#
      • 1...d5
        • 2.Sc6#
      • 1...Qh4!
  • Keys
    • 1.fxg3!
      • threat
        • 2.Qd5#
      • 1...Kd4
        • 2.Bc3#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sf4
        • 2.Qe3#
      • 1...d5
        • 2.Sc6#
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::QAR2(B)
    • S(a);N_GUARD::QAR2(B),XS(a)
    • P(f);N_GUARD::S(G)
  • Tries
    • Try
      • S(G);CHECK
      • Refutation
        • P(g);XS(G)
    • Try
      • R(H);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAR1(B)
        • P(f);P_SPINP(f)::R1(H),XP(f)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(H);
      • Threat
        • R(H)+S(G),DCHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAR1(B)
        • S(a);N_GUARD::QAR2(B)
      • Refutation
        • Q(h);XR(H)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT::B(D)
        • S(a);N_GUARD,P_SPINS(a)::QAR2(B),XS(a)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(E);
      • Threat
        • B(D)
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAR1(B)
        • P(f);N_GUARD::S(G)
      • Refutation
        • Q(h);P_PINB(D)
  • Actual
    • P(A);XP(b)
    • Threat
      • QAR1(B)
    • Vars
      • K(c);N_GUARD,S_FLIGHT::B(D)
      • S(a);N_GUARD::QAR2(B),XS(a)
      • S(a);N_GUARD::QAR2(B)
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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).