MESON Chess Problem Database

Problem Display
PID: 66238 (8/NpB5/P2pp2R/r1p3n1/2Bk4/1P1PN1rp/2b4Q/4R2K w - - 0 1)

Anonymous

The Chess Monthly (Hoffer), 1881

8/NpB5/P2pp2R/r1p3n1/2Bk4/1P1PN1rp/2b4Q/4R2K

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qb2#
    • 1...Bd1
      • 2.Qb2#
    • 1...Bxb3
      • 2.Qb2#
  • Tries
    • 1.Sb5+?
      • 1...Ke5
        • 2.Bxd6#
        • 2.Qxg3#
      • 1...Rxb5!
    • 1.Sc6+?
      • 1...Kc3
        • 2.Qxc2#
      • 1...bxc6!
  • Keys
    • 1.Sd1!
      • 1...Rg1+
        • 2.Qxg1#
      • 1...Rxd3
        • 2.Qxd6#
      • 1...Rxa6
        • 2.Sb5#
      • 1...Bxd1
        • 2.Qb2#
      • 1...Bxb3
        • 2.Qb2#
      • 1...Bxd3
        • 2.Qb2#
      • 1...bxa6
        • 2.Sc6#
      • 1...Se4
        • 2.Rxe4#
      • 1...Rg2
        • 2.Qxd6#
      • 1...Re3
        • 2.Qxd6#
      • 1...Rf3
        • 2.Qxd6#
      • 1...Rg4
        • 2.Qxd6#
        • 2.Qf2#
      • 1...Ra1
        • 2.Sb5#
      • 1...Ra2
        • 2.Sb5#
      • 1...Ra3
        • 2.Sb5#
      • 1...Ra4
        • 2.Sb5#
      • 1...Rb5
        • 2.Sxb5#
      • 1...Bb1
        • 2.Qb2#
      • 1...Sf3
        • 2.Re4#
        • 2.Qf2#
      • 1...Sf7
        • 2.Re4#
      • 1...Sh7
        • 2.Re4#
      • 1...d5
        • 2.Be5#
      • 1...e5
        • 2.Rxd6#
      • 1...b5
        • 2.Sc6#
      • 1...b6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 20
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE::QAB(C)
    • B(a);OGATE,XP(D)::QAB(C)
  • Tries
    • Try
      • S(J);CHECK
      • Refutation
        • R(e);XS(J)
    • Try
      • S(J);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR1(C),XB(a)
      • Refutation
        • P(j);XS(J)
  • Actual
    • S(F);
    • Vars
      • R(b);CHECK,N_GUARD::QAB(C),XR(b)
      • R(b);OGATE,XP(E)::QAR2(C),XP(h)
      • R(e);N_GUARD,XP(H)::S(J)
      • B(a);OGATE,XS(F)::QAB(C)
      • B(a);OGATE,XP(D)::QAB(C)
      • B(a);OGATE,XP(E)::QAB(C)
      • P(j);N_GUARD,XP(H)::S(J)
      • S(g);N_GUARD::R1(A),XS(g)
      • R(b);OGATE::QAR2(C),XP(h)
      • R(e);N_GUARD::S(J)
      • R(e);N_GUARD::S(J),XR(e)
      • B(a);OGATE::QAB(C)
      • S(g);N_GUARD::R1(A)
      • P(h);OGATE::B(K)
      • P(i);OGATE::R(I),XP(h)
      • P(j);N_GUARD::S(J)
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