MESON Chess Problem Database

Problem Display
PID: 218282 (6n1/1Q6/2pB3p/2Rp1p2/3Pk3/3p1N2/5K2/1n6 w - - 0 1)

Croucher, E

British Chess Magazine, 1921

6n1/1Q6/2pB3p/2Rp1p2/3Pk3/3p1N2/5K2/1n6

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Qe7#
    • 1...Se7
      • 2.Qxe7#
    • 1...d2
      • 2.Qxb1#
    • 1...f4
      • 2.Qh7#
  • Tries
    • 1.Sd2+?
      • 1...Kxd4
        • 2.Qb4#
      • 1...Sxd2!
    • 1.Sg5+?
      • 1...Kxd4
        • 2.Qb4#
      • 1...hxg5!
    • 1.Rc1?
      • threat
        • 2.Re1#
      • 1...d2
        • 2.Qxb1#
      • 1...f4
        • 2.Qh7#
      • 1...Sc3!
    • 1.Qb4?
      • threat
        • 2.Qe1#
      • 1...d2
        • 2.Qxb1#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sc3
        • 2.Sd2#
      • 1...f4!
    • 1.Qg7?
      • threat
        • 2.Qe5#
      • 1...Sf6
        • 2.Qe7#
      • 1...d2!
  • Keys
    • 1.Rc4!
      • 1...dxc4
        • 2.Qxc6#
      • 1...d2
        • 2.Qxb1#
      • 1...f4
        • 2.Qh7#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sa3
        • 2.Sd2#
      • 1...Sc3
        • 2.Sd2#
      • 1...Sf6
        • 2.Qe7#
      • 1...Se7
        • 2.Qxe7#
      • 1...c5
        • 2.dxc5#
      • 1...h5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(h);N_GUARD::QAR(F)
    • S(h);N_GUARD::QAR(F),XS(h)
    • P(b);OGATEB::QAB(F),XS(a)
    • P(e);OGATEB::QAB(F)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(C)::QAR2(F)
      • Refutation
        • S(a);XS(B)
    • Try
      • S(B);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(C)::QAR2(F)
      • Refutation
        • P(g);XS(B)
    • Try
      • R(D);
      • Threat
        • R(D)
      • Vars
        • P(b);OGATEB::QAB(F),XS(a)
        • P(e);OGATEB::QAB(F)
      • Refutation
        • S(a);
    • Try
      • Q(F);
      • Threat
        • QAR(F)
      • Vars
        • P(b);OGATEB::QAB(F),XS(a)
        • S(a);N_GUARD::S(B),XS(a)
        • S(a);N_GUARD::S(B)
      • Refutation
        • P(e);
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • S(h);N_GUARD::QAR(F)
      • Refutation
        • P(b);
  • Actual
    • R(D);
    • Vars
      • P(d);OGATEB,P_SPINP(f),XR(D)::QAB(F),XP(f)
      • P(b);OGATEB::QAB(F),XS(a)
      • P(e);OGATEB::QAB(F)
      • S(a);N_GUARD::S(B),XS(a)
      • S(a);N_GUARD::S(B)
      • S(h);N_GUARD::QAR(F)
      • S(h);N_GUARD::QAR(F),XS(h)
      • P(f);OGATE,P_SPINP(d)::R(D)+P(C),XP(f)
      • P(g);N_GUARD::S(B)
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