MESON Chess Problem Database

Problem Display
PID: 264122 (3K3B/p5R1/rp3N1b/4kbqR/1p1pNppr/1B3PP1/1Q6/8 w - - 0 1)

ten Cate, Pieter

Tijdschrift vd KNSB, 1938

3K3B/p5R1/rp3N1b/4kbqR/1p1pNppr/1B3PP1/1Q6/8

#2

10 + 12

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf6+
      • 2.Re7#
    • 1...Qg6
      • 2.Sd7#
      • 2.Re7#
    • 1...Qxg7
      • 2.Sd7#
  • Tries
    • 1.Rgxg5?
      • threat
        • 2.Sxg4#
        • 2.Sd7#
        • 2.Rxf5#
      • 1...Rxh5
        • 2.Sxg4#
        • 2.Sd7#
      • 1...fxg3
        • 2.Rxf5#
      • 1...gxf3
        • 2.Rxf5#
      • 1...Bg7
        • 2.Sd7#
        • 2.Rxf5#
      • 1...Bxg5!
    • 1.gxf4+?
      • 1...Qxf4
        • 2.Sd7#
        • 2.Re7#
      • 1...Kxf4!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Qc7#
      • 1...Qxf6+
        • 2.Re7#
      • 1...Qxg7
        • 2.Sd7#
      • 1...Bxe4
        • 2.Qxf4#
      • 1...Be6
        • 2.Qxf4#
      • 1...Bg6
        • 2.Qxf4#
      • 1...Bd7
        • 2.Qxf4#
      • 1...Bh7
        • 2.Qxf4#
      • 1...Bc8
        • 2.Qxf4#
      • 1...d3
        • 2.Qb2#
      • 1...b5
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • Q(h);CHECK,P_SPINB(g),XS(G)::R(H)
    • Q(h);N_PINS(G),P_SPINB(g),XR(H)::S(G)
  • Tries
    • Try
      • R(H);N_SPINS(G),P_PINB(g),XQ(h)
      • Threat
        • DUALS(3)
      • Vars
        • P(c);XP(D)::R1(H),XB(g)
        • P(d);XP(C)::R1(H),XB(g)
      • Refutation
        • B(k);N_SPINB(g),P_PINS(G),XR(H)
    • Try
      • P(D);CHECK,XP(c)
      • Refutation
        • K(f);N_SPINP(b),S_FLIGHT,XP(D)
  • Actual
    • Q(A);N_PINP(b)
    • Threat
      • QAB(A)
    • Vars
      • Q(h);CHECK,P_SPINB(g),XS(G)::R(H)
      • Q(h);N_PINS(G),P_SPINB(g),XR(H)::S(G)
      • B(g);P_SPINQ(h),XS(E)::QAB1(A),XP(c)
      • B(g);P_SPINQ(h)::QAB1(A),XP(c)
      • P(b);OGATEB::QAB(A)
      • P(j);N_GUARD::QAR2(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).