MESON Chess Problem Database

Problem Display
PID: 107077 (7q/3B1n2/8/1NP2rr1/1KN1kb2/2R1p1P1/8/3Q4 w - - 0 1)

Caresmel, Andre

De Waarheid, 1963

7q/3B1n2/8/1NP2rr1/1KN1kb2/2R1p1P1/8/3Q4

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc3+
      • 2.Sxc3#
    • 1...Qd4
      • 2.Qh1#
    • 1...Qe5
      • 2.Qh1#
    • 1...Qf6
      • 2.Qh1#
    • 1...Qg7
      • 2.Qh1#
    • 1...Qh1
      • 2.Qxh1#
    • 1...Qa8
      • 2.Qh1#
    • 1...Qb8
      • 2.Qh1#
    • 1...Qc8
      • 2.Qh1#
    • 1...Qd8
      • 2.Qh1#
    • 1...Qe8
      • 2.Qh1#
    • 1...Qf8
      • 2.Qh1#
    • 1...Qg8
      • 2.Qh1#
    • 1...Be5
      • 2.Bc6#
      • 2.Rxe3#
    • 1...Bd6
      • 2.Rxe3#
    • 1...Bc7
      • 2.Rxe3#
    • 1...Bb8
      • 2.Rxe3#
    • 1...Se5
      • 2.Scd6#
      • 2.Sbd6#
    • 1...Sh6
      • 2.Qh1#
    • 1...e2
      • 2.Qd3#
  • Tries
    • 1.Sbd6+?
      • 1...Bxd6
        • 2.Rxe3#
      • 1...Sxd6!
    • 1.Qc2+?
      • 1...Kd5
        • 2.Qg2#
      • 1...Kf3!
  • Keys
    • 1.Se5!
      • threat
        • 2.Qd4#
      • 1...Kxe5
        • 2.Qd4#
      • 1...Qxe5
        • 2.Qh1#
      • 1...Rxe5
        • 2.Rc4#
      • 1...Bxe5
        • 2.Bc6#
      • 1...Sxe5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 17
  • Sets
    • Q(g);CHECK,XR(B)::S(F),XQ(g)
    • Q(g);N_GUARD,P_PINS(E)::QAB(A)
    • Q(g);N_GUARD::QAB(A)
    • Q(g);N_GUARD::QAB(A),XQ(g)
    • Q(g);N_GUARD,P_PINS(F)::QAB(A)
    • Q(g);N_GUARD,P_PINP(G)::QAB(A)
    • B(c);N_GUARD,P_PINP(G)::R1(B),XP(a)
    • B(c);N_GUARD::R1(B),XP(a)
    • S(f);S_CUTQ(g)::QAB(A)
    • P(a);::QAB1(A)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • B(c);P_PINP(G),XS(F)::R1(B),XP(a)
      • Refutation
        • S(f);XS(F)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(A)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
  • Actual
    • S(E);
    • Threat
      • QAR1(A)
    • Vars
      • K(b);P-FLIGHT,XS(E)::QAB1(A)
      • Q(g);N_GUARD,SBLOCK,XS(E)::QAB(A)
      • R(d);SBLOCK,XS(E)::R(B)
      • B(c);SBLOCK,XS(E)::B(H)
      • S(f);N_GUARD,SBLOCK,XS(E)::S(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).