MESON Chess Problem Database

Problem Display
PID: 21799 (8/2p2p2/5Bp1/3PK1p1/RN2P3/p1k1Pp2/qp1N1R2/1b1Q4 w - - 0 1)

Fink, Adolf Jay

1st Prize=, Good Companions (April Complete Blocks), 1921

8/2p2p2/5Bp1/3PK1p1/RN2P3/p1k1Pp2/qp1N1R2/1b1Q4

#2

10 + 10

3132 The Good Companion Two-Mover 1922

SOLUTION

  • SOUND
  • Sets
    • 1...Qb3
      • 2.Qxb3#
    • 1...Qc4
      • 2.Sxb1#
    • 1...Qxd5+
      • 2.Kxd5#
    • 1...Qa1
      • 2.Qb3#
    • 1...Bc2
      • 2.Qxc2#
    • 1...Bd3
      • 2.Sxa2#
    • 1...Bxe4
      • 2.Kxe4#
    • 1...g4
      • 2.Kf4#
    • 1...c5
      • 2.Kd6#
    • 1...c6
      • 2.Kd6#
  • Tries
    • 1.Sxa2+?
      • 1...Kd3
        • 2.Sf1#
        • 2.Sc4#
        • 2.Rxa3#
        • 2.Qb3#
      • 1...Bxa2!
    • 1.Rh2?
      • 1...Qxd5+
        • 2.Kxd5#
      • 1...Bxe4
        • 2.Kxe4#
      • 1...Qc4
        • 2.Sxb1#
      • 1...Qb3
        • 2.Qxb3#
      • 1...Qa1
        • 2.Qb3#
      • 1...Bc2
        • 2.Qxc2#
      • 1...Bd3
        • 2.Sxa2#
      • 1...g4
        • 2.Kf4#
      • 1...c5
        • 2.Kd6#
      • 1...c6
        • 2.Kd6#
      • 1...f2!
    • 1.Qe2?
      • 1...Qxd5+
        • 2.Kxd5#
      • 1...Bxe4
        • 2.Kxe4#
      • 1...Qa1
        • 2.Qc4#
      • 1...Qb3
        • 2.Sxb1#
      • 1...Qc4
        • 2.Qxc4#
      • 1...Bc2
        • 2.Sxa2#
      • 1...Bd3
        • 2.Qxd3#
      • 1...g4
        • 2.Kf4#
      • 1...c5
        • 2.Kd6#
      • 1...c6
        • 2.Kd6#
      • 1...fxe2!
    • 1.Qxb1?
      • threat
        • 2.Sxa2#
        • 2.Qc2#
        • 2.Qd3#
      • 1...Qxd5+
        • 2.Kxd5#
        • 2.Sxd5#
      • 1...Qa1
        • 2.Qc2#
        • 2.Qd3#
      • 1...Qb3
        • 2.Qd3#
      • 1...Qc4
        • 2.Qc2#
      • 1...Qxb1!
  • Keys
    • 1.Qf1!
      • 1...Qxd5+
        • 2.Kxd5#
      • 1...Bxe4
        • 2.Kxe4#
      • 1...Qa1
        • 2.Qc4#
      • 1...Qb3
        • 2.Sxb1#
      • 1...Qc4
        • 2.Qxc4#
      • 1...Bc2
        • 2.Sxa2#
      • 1...Bd3
        • 2.Qxd3#
      • 1...g4
        • 2.Kf4#
      • 1...c5
        • 2.Kd6#
      • 1...c6
        • 2.Kd6#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 5
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • Q(b);N_GUARD::QAR1(A),XQ(b)
    • Q(b);N_GUARD,SBLOCK::S(B),XB(a)
    • Q(b);CHECK,XP(H)::B(J)+K(I),XQ(b)
    • Q(b);N_GUARD::QAR1(A)
    • B(a);N_GUARD::QAR1(A),XB(a)
    • B(a);N_GUARD,SBLOCK::S(F),XQ(b)
    • B(a);XP(G)::B(J)+K(I),XB(a)
    • P(g);::B(J)+K(I)
    • P(i);::B(J)+K(I)
  • Tries
    • Try
      • S(F);CHECK,XQ(b)
      • Refutation
        • B(a);XS(F)
    • Try
      • R(C);
      • Vars
        • Q(b);CHECK,XP(H)::B(J)+K(I),XQ(b)
        • B(a);XP(G)::B(J)+K(I),XB(a)
        • Q(b);N_GUARD,SBLOCK::S(B),XB(a)
        • Q(b);N_GUARD::QAR1(A),XQ(b)
        • Q(b);N_GUARD::QAR1(A)
        • B(a);N_GUARD::QAR1(A),XB(a)
        • B(a);N_GUARD,SBLOCK::S(F),XQ(b)
        • P(g);::B(J)+K(I)
        • P(i);::B(J)+K(I)
      • Refutation
        • P(f);
    • Try
      • Q(A);
      • Vars
        • Q(b);CHECK,XP(H)::B(J)+K(I),XQ(b)
        • B(a);XP(G)::B(J)+K(I),XB(a)
        • Q(b);N_GUARD::QAR1(A)
        • Q(b);N_GUARD,SBLOCK::S(B),XB(a)
        • Q(b);N_GUARD::QAR1(A),XQ(b)
        • B(a);N_GUARD,SBLOCK::S(F),XQ(b)
        • B(a);N_GUARD::QAR1(A),XB(a)
        • P(g);::B(J)+K(I)
        • P(i);::B(J)+K(I)
      • Refutation
        • P(f);XQ(A)
    • Try
      • Q(A);XB(a)
      • Threat
        • DUALS(3)
      • Vars
        • Q(b);::QAR1(A)
      • Refutation
        • Q(b);XQ(A)
  • Actual
    • Q(A);
    • Vars
      • Q(b);CHECK,XP(H)::B(J)+K(I),XQ(b)
      • B(a);XP(G)::B(J)+K(I),XB(a)
      • Q(b);N_GUARD::QAR1(A)
      • Q(b);N_GUARD,SBLOCK::S(B),XB(a)
      • Q(b);N_GUARD::QAR1(A),XQ(b)
      • B(a);N_GUARD,SBLOCK::S(F),XQ(b)
      • B(a);N_GUARD::QAR1(A),XB(a)
      • P(g);::B(J)+K(I)
      • P(i);::B(J)+K(I)
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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).