MESON Chess Problem Database

Problem Display
PID: 234596 (6N1/3Np1K1/p3k1p1/2P5/8/2pQ2p1/q1B5/4r3 w - - 0 1)

Crake, James

Pen & Pencil, 1889

(First published on Sat Nov 23 1889)

6N1/3Np1K1/p3k1p1/2P5/8/2pQ2p1/q1B5/4r3

#2

6 + 8

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qb3
      • 2.Bxb3#
    • 1...Qa1
      • 2.Bb3#
    • 1...Qa5
      • 2.Bb3#
    • 1...Re5
      • 2.Sf8#
    • 1...g5
      • 2.Qf5#
  • Keys
    • 1.Sgf6!
      • 1...Qxc2
        • 2.Qd5#
      • 1...exf6
        • 2.Qd6#
      • 1...Re4
        • 2.Qxe4#
      • 1...Qb3
        • 2.Bxb3#
      • 1...Qb1
        • 2.Qc4#
        • 2.Qd5#
      • 1...Qc4
        • 2.Qxc4#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Qa1
        • 2.Bb3#
        • 2.Qc4#
        • 2.Qd5#
      • 1...Qb2
        • 2.Qc4#
        • 2.Qd5#
      • 1...Qa3
        • 2.Qc4#
        • 2.Qd5#
      • 1...Qa4
        • 2.Qd5#
      • 1...Qa5
        • 2.Bb3#
        • 2.Qc4#
        • 2.Qd5#
      • 1...Ra1
        • 2.Qe2#
        • 2.Qe4#
        • 2.Qe3#
      • 1...Rb1
        • 2.Qe2#
        • 2.Qe4#
        • 2.Qe3#
      • 1...Rc1
        • 2.Qe2#
        • 2.Qe4#
        • 2.Qe3#
      • 1...Rd1
        • 2.Qe2#
        • 2.Qe4#
        • 2.Qe3#
      • 1...Rf1
        • 2.Qe2#
        • 2.Qe4#
        • 2.Qe3#
      • 1...Rg1
        • 2.Qe2#
        • 2.Qe4#
        • 2.Qe3#
      • 1...Rh1
        • 2.Qe2#
        • 2.Qe4#
        • 2.Qe3#
      • 1...Re2
        • 2.Qxe2#
      • 1...Re3
        • 2.Qxe3#
      • 1...Re5
        • 2.Sf8#
      • 1...g2
        • 2.Qh3#
      • 1...a5
        • 2.Qa6#
      • 1...g5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 2
  • Sets
    • Q(b);N_GUARD::B(A),XQ(b)
    • Q(b);N_GUARD::B(A)
    • R(a);SBLOCK::S(D)
    • P(g);N_GUARD::QAB1(B)
  • Actual
    • S(F);
    • Vars
      • Q(b);N_GUARD,XB(A)::QAB1(B)
      • P(h);N_GUARD,XS(F)::QAR1(B)
      • R(a);N_GUARD::QAR2(B),XR(a)
      • Q(b);N_GUARD::B(A),XQ(b)
      • Q(b);N_GUARD::QAB(B),XQ(b)
      • Q(b);N_GUARD::QAB1(B),XQ(b)
      • Q(b);N_GUARD::QAB1(B)
      • R(a);N_GUARD::QAR(B),XR(a)
      • R(a);SBLOCK::S(D)
      • P(d);OGATE::QAB(B)
      • P(e);S_CUTQ(b)::QAR(B)
      • P(g);N_GUARD::QAB1(B)
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