MESON Chess Problem Database

Problem Display
PID: 68993 (B6K/3np3/5R1p/3bpN2/2p1kB2/3p1pPN/1Q2p3/7n w - - 0 1)

Carpenter, George Edward

The Chess Player's Chronicle (Sampson), 1873

B6K/3np3/5R1p/3bpN2/2p1kB2/3p1pPN/1Q2p3/7n

#2

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bc6
      • 2.Bxc6#
    • 1...Bb7
      • 2.Bxb7#
      • 2.Qxb7#
    • 1...Sf2
      • 2.Sxf2#
    • 1...Sxg3
      • 2.Sxg3#
    • 1...Sc5
      • 2.Qxe5#
    • 1...Sb6
      • 2.Qxe5#
    • 1...Sxf6
      • 2.Qxe5#
    • 1...Sb8
      • 2.Qxe5#
    • 1...Sf8
      • 2.Qxe5#
    • 1...d2
      • 2.Qb1#
      • 2.Qc2#
    • 1...c3
      • 2.Qb4#
    • 1...exf4
      • 2.Qd4#
    • 1...h5
      • 2.Sg5#
    • 1...exf6
      • 2.Sd6#
    • 1...e6
      • 2.Sd6#
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qxc4#
      • 1...Sxf6
        • 2.Qxe5#
      • 1...exf4
        • 2.Qd4#
      • 1...exf6
        • 2.Sd6#
      • 1...Sb6
        • 2.Qxe5#
      • 1...f2!
  • Keys
    • 1.Qa1!
      • 1...Bxa8
        • 2.Qxa8#
      • 1...Sxg3
        • 2.Sxg3#
      • 1...Sxf6
        • 2.Qxe5#
      • 1...exf4
        • 2.Qd4#
      • 1...exf6
        • 2.Sd6#
      • 1...Bc6
        • 2.Bxc6#
      • 1...Bb7
        • 2.Bxb7#
      • 1...d2
        • 2.Qb1#
      • 1...f2
        • 2.Qxh1#
      • 1...e1Q
        • 2.Qxe1#
      • 1...e1S
        • 2.Qxe1#
      • 1...e1B
        • 2.Qxe1#
      • 1...e1R
        • 2.Qxe1#
      • 1...Sf2
        • 2.Sxf2#
      • 1...Sc5
        • 2.Qxe5#
      • 1...Sb6
        • 2.Qxe5#
      • 1...Sb8
        • 2.Qxe5#
      • 1...Sf8
        • 2.Qxe5#
      • 1...c3
        • 2.Qa4#
      • 1...h5
        • 2.Sg5#
      • 1...e6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • B(g);OGATEB::B(G),XB(g)
    • S(a);N_GUARD::S(C),XS(a)
    • S(a);XP(B)::S(E),XS(a)
    • S(j);N_GUARD::QAR1(A),XP(h)
    • S(j);N_GUARD,XR(F)::QAR1(A),XP(h)
    • P(e);OGATEB::QAR(A)
    • P(h);N_GUARD,XB(D)::QAR1(A)
    • P(i);N_GUARD::S(C)
    • P(k);N_GUARD,XR(F)::S(E)
    • P(k);N_GUARD::S(E)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR2(A),XP(e)
      • Vars
        • S(j);N_GUARD,XR(F)::QAR1(A),XP(h)
        • P(h);N_GUARD,XB(D)::QAR1(A)
        • P(k);N_GUARD,XR(F)::S(E)
        • S(j);N_GUARD::QAR1(A),XP(h)
      • Refutation
        • P(d);
  • Actual
    • Q(A);
    • Vars
      • B(g);N_SPINB(g),OGATE,XB(G)::QAB(A),XB(g)
      • S(a);XP(B)::S(E),XS(a)
      • S(j);N_GUARD,XR(F)::QAR1(A),XP(h)
      • P(h);N_GUARD,XB(D)::QAR1(A)
      • P(k);N_GUARD,XR(F)::S(E)
      • B(g);OGATEB::B(G),XB(g)
      • P(c);OGATEB::QAB(A)
      • P(d);OGATEB::QAB(A),XS(a)
      • P(b);OGATEB::QAR(A),XQ(b)
      • P(b);OGATEB::QAR(A),XS(b)
      • P(b);OGATEB::QAR(A),XB(b)
      • P(b);OGATEB::QAR(A),XR(b)
      • S(a);N_GUARD::S(C),XS(a)
      • S(j);N_GUARD::QAR1(A),XP(h)
      • P(e);OGATEB::QAR(A)
      • P(i);N_GUARD::S(C)
      • P(k);N_GUARD::S(E)
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