MESON Chess Problem Database

Problem Display
PID: 2726 (5Q1n/2p2b2/2B1N3/r1pKR2r/2N3pB/5kP1/q1p4R/7n w - - 0 1)

Telkes, Imre

Source?, 0000

5Q1n/2p2b2/2B1N3/r1pKR2r/2N3pB/5kP1/q1p4R/7n

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Sd2#
    • 1...Qxc4+
      • 2.Kxc4#
    • 1...Qa1
      • 2.Sd2#
    • 1...Qb2
      • 2.Sd2#
    • 1...Qa3
      • 2.Sd2#
    • 1...Qa4
      • 2.Sd2#
    • 1...Ra3
      • 2.Kxc5#
    • 1...Ra4
      • 2.Kxc5#
    • 1...Ra7
      • 2.Kxc5#
    • 1...Ra8
      • 2.Kxc5#
    • 1...Rxh4
      • 2.Re3#
    • 1...Rxe5+
      • 2.Kxe5#
    • 1...Rf5
      • 2.Rxf5#
    • 1...Rh6
      • 2.Re3#
      • 2.Rf5#
    • 1...Rh7
      • 2.Re3#
      • 2.Rf5#
  • Tries
    • 1.Qxf7+?
      • 1...Rf5
        • 2.Sg5#
        • 2.Rxf5#
        • 2.Qxf5#
      • 1...Sxf7!
  • Keys
    • 1.Qxc5!
      • threat
        • 2.Kd4#
      • 1...Qxc4+
        • 2.Kxc4#
      • 1...Rxc5+
        • 2.Kxc5#
      • 1...Rxe5+
        • 2.Kxe5#
      • 1...Bxe6+
        • 2.Kxe6#
      • 1...Rxh4
        • 2.Re3#
      • 1...Sxg3
        • 2.Rf2#
      • 1...Qa1
        • 2.Sd2#
      • 1...Qb2
        • 2.Sd2#
      • 1...Qa4
        • 2.Sd2#
      • 1...Ra6
        • 2.Qe3#
      • 1...Bg6
        • 2.Sd4#
      • 1...Be8
        • 2.Sd4#
      • 1...Sf2
        • 2.Rxf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 7
  • Sets
    • Q(b);N_PINS(C),P_PINS(H)::S(C)
    • Q(b);CHECK,P_PINS(H),XS(C)::B(G)+K(E),XQ(b)
    • R(f);::B(G)+K(E),XP(g)
    • R(h);N_PINR(F),XB(D)::R1(F)
    • R(h);CHECK,XR(F)::B(G)+K(E),XR(h)
    • R(h);N_GUARD,N_SPINB(j)::R(F),XR(h)
  • Tries
    • Try
      • Q(I);CHECK,XB(j)
      • Refutation
        • S(k);XQ(I)
  • Actual
    • Q(I);N_PINB(j),P_SPINQ(I),XP(g)
    • Threat
      • B(G)+K(E)
    • Vars
      • Q(b);CHECK,P_PINS(H),XS(C)::B(G)+K(E),XQ(b)
      • R(f);CHECK,XQ(I)::B(G)+K(E),XR(f)
      • R(h);CHECK,XR(F)::B(G)+K(E),XR(h)
      • B(j);CHECK,XS(H)::B(G)+K(E),XB(j)
      • R(h);N_PINR(F),XB(D)::R1(F)
      • S(a);N_GUARD,XP(B)::R1(A)
      • Q(b);N_PINS(C),P_PINS(H)::S(C)
      • R(f);N_PINQ(I)::QAR1(I)
      • B(j);::S(H)
      • S(a);N_GUARD::R1(A),XS(a)
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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).