MESON Chess Problem Database

Problem Display
PID: 152715 (1b6/8/1p2K3/4P1p1/2N1R3/1PNk4/R2p1p2/B3q2B w - - 0 1)

Hirschenson, Aaron

Prize, Mezija, 2005

1b6/8/1p2K3/4P1p1/2N1R3/1PNk4/R2p1p2/B3q2B

#2

9 + 7

15323 FIDE Album (2004-2006) 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Rxd2#
    • 1...Qf1
      • 2.Rxd2#
    • 1...Qg1
      • 2.Rxd2#
    • 1...Qxh1
      • 2.Rxd2#
    • 1...Qxe4
      • 2.Rxd2#
    • 1...Bxe5
      • 2.Sxe5#
  • Tries
    • 1.Se2?
      • threat
        • 2.Re3#
      • 1...Qxe2
        • 2.Rd4#
      • 1...d1S
        • 2.Sc1#
        • 2.Rd4#
      • 1...f1S!
    • 1.Sd5?
      • threat
        • 2.Sb4#
      • 1...Qxa1
        • 2.Rxd2#
      • 1...Qxh1
        • 2.Re3#
      • 1...Qxe4
        • 2.Rxd2#
      • 1...Qe3
        • 2.Rxe3#
      • 1...d1Q
        • 2.Rd4#
      • 1...d1S
        • 2.Rd4#
      • 1...d1B
        • 2.Rd4#
      • 1...d1R
        • 2.Rd4#
      • 1...Bd6!
  • Keys
    • 1.Kd5!
      • threat
        • 2.Rd4#
      • 1...Qxe4+
        • 2.Bxe4#
      • 1...Qxa1
        • 2.Re3#
      • 1...Qxh1
        • 2.Rxd2#
      • 1...Bxe5
        • 2.Sxe5#
      • 1...Qe3
        • 2.Rxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • Q(a);N_GUARD::R1(C),XP(b)
    • Q(a);N_GUARD,XB(B)::R1(C),XP(b)
    • Q(a);N_GUARD,P_PINP(H),XR(G)::R1(C),XP(b)
    • B(g);XP(H)::S(F),XB(g)
  • Tries
    • Try
      • S(E);
      • Threat
        • R1(G)
      • Vars
        • Q(a);SBLOCK,XS(E)::R1(G)
      • Refutation
        • P(c);
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • Q(a);N_GUARD,XB(A)::R1(C),XP(b)
        • Q(a);N_GUARD,XB(B)::R1(G)
        • Q(a);N_GUARD,P_PINP(H),XR(G)::R1(C),XP(b)
        • Q(a);N_GUARD::R1(G),XQ(a)
        • P(b);::R1(G)
      • Refutation
        • B(g);
  • Actual
    • K(I);S_FLIGHT
    • Threat
      • R1(G)
    • Vars
      • Q(a);CHECK,OGATE,XR(G)::B(B),XQ(a)
      • Q(a);N_GUARD,XB(A)::R1(G)
      • Q(a);N_GUARD,P_PINR(G),XB(B)::R1(C),XP(b)
      • B(g);XP(H)::S(F),XB(g)
      • Q(a);N_GUARD::R1(G),XQ(a)
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).