MESON Chess Problem Database

Problem Display
PID: 59920 (6B1/3P4/3rP2K/1pp4R/1pk2N2/3pR3/4Q3/B3n3 w - - 0 1)

Touw Hian Bwee

3rd Prize, Schakend Nederland, 1970

6B1/3P4/3rP2K/1pp4R/1pk2N2/3pR3/4Q3/B3n3

#2

9 + 7

3751 FIDE Album (1968-1970) 1977
6352 A Collection of Chess Problems by Touw Hian Bwee 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe6+
      • 2.Bxe6#
    • 1...Rxd7
      • 2.exd7#
  • Tries
    • 1.Rxd3?
      • 1...Rxe6+
        • 2.Bxe6#
        • 2.Qxe6#
      • 1...Rxd3
        • 2.e7#
      • 1...Rxd7
        • 2.exd7#
      • 1...Sxd3
        • 2.Qc2#
      • 1...b3
        • 2.Rd4#
      • 1...Rd4
        • 2.Rc3#
      • 1...Ra6
        • 2.Qe4#
      • 1...Rb6
        • 2.Qe4#
      • 1...Rc6
        • 2.Qe4#
      • 1...Sc2
        • 2.Qxc2#
      • 1...Sg2
        • 2.Qc2#
      • 1...Sf3
        • 2.Qc2#
      • 1...Rd5!
    • 1.Re4+?
      • 1...Rd4
        • 2.e7#
      • 1...Kb3!
  • Keys
    • 1.Sxd3!
      • 1...Rxe6+
        • 2.Bxe6#
      • 1...Kb3
        • 2.Sxc5#
      • 1...Rxd3
        • 2.e7#
      • 1...Rxd7
        • 2.exd7#
      • 1...Sxd3
        • 2.Qc2#
      • 1...Rd4
        • 2.Sb2#
      • 1...Rd5
        • 2.Se5#
      • 1...Ra6
        • 2.Sxe1#
      • 1...Rb6
        • 2.Sxe1#
      • 1...Rc6
        • 2.Sxe1#
      • 1...Sc2
        • 2.Qxc2#
      • 1...Sg2
        • 2.Qc2#
      • 1...Sf3
        • 2.Qc2#
      • 1...b3
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • R(g);CHECK,OGATE,P_SPINR(g),XP(F)::B(I),XR(g)
    • R(g);N_PINP(F),XP(H)::B(I)+P(F),XR(g)
  • Tries
    • Try
      • R(C);XP(b)
      • Vars
        • R(g);N_PINP(F),P_SPINR(g),XR(C)::B(I)+P(F)
        • R(g);N_PINP(F),XP(H)::B(I)+P(F),XR(g)
        • S(a);N_GUARD,P_SPINS(a),XR(C)::QAR2(B)
        • P(c);SBLOCK::QAB(B)+R(C),DCHECK
        • R(g);N_PINP(F),SBLOCK::QAB(B)+R(C),DCHECK
        • R(g);N_GUARD::QAR2(B)
        • S(a);N_GUARD::QAR2(B),XS(a)
        • S(a);N_GUARD::QAR2(B)
      • Refutation
        • R(g);N_PINP(F)
    • Try
      • R(C);CHECK
      • Vars
        • R(g);N_PINP(F),P_SPINR(g)::B(I)+P(F)
      • Refutation
        • K(d);N_SPINP(b),S_FLIGHT
  • Actual
    • S(D);XP(b)
    • Vars
      • R(g);CHECK,OGATE,P_SPINR(g),XP(F)::B(I),XR(g)
      • K(d);S_FLIGHT::R(C)+S(D),DCHECK,XP(f)
      • R(g);N_PINP(F),P_SPINR(g),XS(D)::B(I)+P(F)
      • R(g);N_PINP(F),XP(H)::B(I)+P(F),XR(g)
      • S(a);N_GUARD,P_SPINS(a),XS(D)::QAR2(B)
      • R(g);N_PINP(F),SBLOCK::QAB(B)+S(D),DCHECK
      • R(g);N_GUARD::QAB(B)+S(D),XS(a)
      • S(a);N_GUARD::QAR2(B),XS(a)
      • S(a);N_GUARD::QAR2(B)
      • P(c);SBLOCK::R1(E),XP(f)
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).