MESON Chess Problem Database

Problem Display
PID: 144435 (5Q2/4p1K1/2pBp3/6n1/R1Pkr2N/1P3B2/1Pp1PP2/Nbn5 w - - 0 1)

Pulitzer, Walter

British Chess Magazine, 1898

5Q2/4p1K1/2pBp3/6n1/R1Pkr2N/1P3B2/1Pp1PP2/Nbn5

#2

12 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.c5#
    • 1...Rf4
      • 2.c5#
    • 1...Rg4
      • 2.c5#
    • 1...Rxh4
      • 2.c5#
    • 1...Re5
      • 2.c5#
    • 1...Ba2
      • 2.Sxc2#
    • 1...Sxb3
      • 2.Sxb3#
    • 1...Sxf3
      • 2.Sxf3#
    • 1...e5
      • 2.Sf5#
    • 1...exd6
      • 2.Qxd6#
  • Tries
    • 1.Bc5+?
      • 1...Ke5
        • 2.Sg6#
        • 2.Qb8#
      • 1...Kxc5!
    • 1.Qf6+?
      • 1...Re5
        • 2.Qxe5#
        • 2.c5#
      • 1...e5
        • 2.Sf5#
      • 1...exf6!
  • Keys
    • 1.Qf4!
      • 1...Rxf4
        • 2.c5#
      • 1...Sxe2
        • 2.Qd2#
      • 1...Sxb3
        • 2.Sxb3#
      • 1...Sxf3
        • 2.Sxf3#
      • 1...exd6
        • 2.Qxd6#
      • 1...Ba2
        • 2.Sxc2#
      • 1...Sa2
        • 2.Qd2#
      • 1...Sd3
        • 2.e3#
      • 1...Sh3
        • 2.Qxe4#
      • 1...Sf7
        • 2.Qxe4#
      • 1...Sh7
        • 2.Qxe4#
      • 1...c5
        • 2.Be5#
      • 1...e5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 4
  • Sets
    • R(e);::R(G)+P(H)
    • R(e);XS(I)::R(G)+P(H)
    • B(a);N_GUARD::S(A),XP(c)
    • S(b);XP(E)::S(A),XS(b)
    • S(f);XB(F)::S(I),XS(f)
    • P(h);N_GUARD::S(I)
    • P(i);OGATE,XB(J)::QAR2(L),XP(i)
  • Tries
    • Try
      • B(J);CHECK
      • Refutation
        • K(d);P_SPINP(i),S_FLIGHT,XB(J)
    • Try
      • Q(L);CHECK
      • Vars
        • P(h);P_SPINP(h)::S(I)
      • Refutation
        • P(i);XQ(L)
  • Actual
    • Q(L);P_PINR(e)
    • Vars
      • R(e);N_SPINR(e),XQ(L)::R(G)+P(H)
      • S(b);N_GUARD,XP(C)::QAR2(L)
      • S(b);XP(E)::S(A),XS(b)
      • S(f);XB(F)::S(I),XS(f)
      • P(i);OGATE,XB(J)::QAR2(L),XP(i)
      • B(a);N_GUARD::S(A),XP(c)
      • S(b);N_GUARD::QAR2(L)
      • S(b);SBLOCK::P(C)
      • S(f);N_GUARD::QAR1(L),XR(e)
      • P(g);SBLOCK::B(J)
      • P(h);N_GUARD::S(I)
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