MESON Chess Problem Database

Problem Display
PID: 232085 (brn1B3/p3PK2/P2k2p1/b2Pp1N1/1pQNP2B/1n6/8/8 w - - 0 1)

Simpson, Rev. R

Pen & Pencil, 1889

(First published on Sat Aug 31 1889)

brn1B3/p3PK2/P2k2p1/b2Pp1N1/1pQNP2B/1n6/8/8

#2

10 + 10

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Sxb5#
    • 1...Rb7
      • 2.Qc6#
    • 1...Bb6
      • 2.Sb5#
    • 1...Bd8
      • 2.exd8Q#
      • 2.exd8R#
    • 1...Bc6
      • 2.Qxc6#
    • 1...Bb7
      • 2.Sb5#
    • 1...Sb6
      • 2.Sb5#
    • 1...exd4
      • 2.Bg3#
  • Keys
    • 1.Sge6!
      • 1...Bxd5
        • 2.Qxd5#
      • 1...Sxd4
        • 2.Qc5#
      • 1...Sxe7
        • 2.Bxe7#
      • 1...exd4
        • 2.Bg3#
      • 1...Rb5
        • 2.Sxb5#
      • 1...Rb6
        • 2.Qc7#
      • 1...Rb7
        • 2.Qc6#
      • 1...Bb6
        • 2.Sb5#
      • 1...Bc7
        • 2.Qxc7#
      • 1...Bd8
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Bb7
        • 2.Sb5#
      • 1...Sa1
        • 2.Qc5#
      • 1...Sc1
        • 2.Qc5#
      • 1...Sd2
        • 2.Qc5#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sb6
        • 2.Sb5#
        • 2.Qc7#
      • 1...g5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 1
  • Sets
    • R(i);N_GUARD::S(B),XR(i)
    • R(i);P_PINP(H),S_CUTB(h)::QAR1(A)
    • B(c);S_CUTR(i)::S(B)
    • B(c);OGATE::PXB(c)=Q
    • B(h);N_GUARD::QAR1(A),XB(h)
    • B(h);S_CUTR(i)::S(B)
    • S(j);S_CUTR(i)::S(B)
    • P(d);OGATEB,XS(B)::B(D)
  • Actual
    • S(F);
    • Vars
      • B(h);OGATE,P_PINS(F),XP(E)::QAR1(A),XB(h)
      • S(a);N_GUARD,XS(B)::QAB1(A)
      • S(j);OGATE,XP(H)::B(D),XS(j)
      • P(d);OGATEB,XS(B)::B(D)
      • R(i);N_GUARD::S(B),XR(i)
      • R(i);S_CUTB(c)::QAB1(A)
      • R(i);P_PINP(H),S_CUTB(h)::QAR1(A)
      • B(c);S_CUTR(i)::S(B)
      • B(c);N_GUARD::QAB1(A),XB(c)
      • B(c);OGATE::PXB(c)=Q
      • B(h);N_GUARD::QAR1(A),XB(h)
      • B(h);S_CUTR(i)::S(B)
      • S(a);N_GUARD::QAB1(A)
      • S(a);N_GUARD::QAB1(A),XS(a)
      • P(f);N_GUARD::S(B)
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