MESON Chess Problem Database

Problem Display
PID: 109220 (1r1Bb1n1/2pp2R1/1p1k1p1N/NP3P2/r1PP4/8/3Qn2K/7B w - - 0 1)

Pulitzer, Walter

Literary Digest, 1898

1r1Bb1n1/2pp2R1/1p1k1p1N/NP3P2/r1PP4/8/3Qn2K/7B

#2

11 + 10

15 British Chess Magazine 1899
15 British Chess Magazine 1910
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Sxc4#
    • 1...Rb7
      • 2.Sxb7#
    • 1...Ra8
      • 2.Sb7#
    • 1...Rc8
      • 2.Sb7#
    • 1...Rxd8
      • 2.Sb7#
    • 1...Bf7
      • 2.Sxf7#
    • 1...Sc1
      • 2.Qf4#
    • 1...Sg1
      • 2.Qf4#
    • 1...Sc3
      • 2.Qf4#
    • 1...Sg3
      • 2.Qf4#
    • 1...Sxd4
      • 2.Qxd4#
    • 1...Sf4
      • 2.Qxf4#
    • 1...Sxh6
      • 2.Be7#
    • 1...Se7
      • 2.Bxe7#
    • 1...bxa5
      • 2.c5#
  • Tries
    • 1.Bxf6?
      • threat
        • 2.Be5#
      • 1...Sxd4
        • 2.Qxd4#
      • 1...Bf7
        • 2.Sxf7#
      • 1...Sxf6!
    • 1.Rxd7+?
      • 1...Bxd7
        • 2.Sf7#
      • 1...Kxd7!
  • Keys
    • 1.Bc6!
      • 1...Rxc4
        • 2.Sxc4#
      • 1...Rxa5
        • 2.Qb4#
      • 1...Rxd8
        • 2.Sb7#
      • 1...Sxd4
        • 2.Qxd4#
      • 1...Sxh6
        • 2.Be7#
      • 1...bxa5
        • 2.c5#
      • 1...dxc6
        • 2.Bxc7#
      • 1...Ra1
        • 2.Qb4#
      • 1...Ra2
        • 2.Qb4#
      • 1...Ra3
        • 2.Qb4#
      • 1...Rb4
        • 2.Qxb4#
      • 1...Rb7
        • 2.Sxb7#
      • 1...Ra8
        • 2.Sb7#
      • 1...Rc8
        • 2.Sb7#
      • 1...Bh5
        • 2.Rxd7#
      • 1...Bg6
        • 2.Rxd7#
      • 1...Bf7
        • 2.Sxf7#
      • 1...Sc1
        • 2.Qf4#
      • 1...Sg1
        • 2.Qf4#
      • 1...Sc3
        • 2.Qf4#
      • 1...Sg3
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Se7
        • 2.Bxe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(b);XP(D)::S(F),XR(b)
    • R(h);N_GUARD::S(F),XR(h)
    • R(h);N_GUARD::S(F)
    • R(h);N_GUARD,XB(K)::S(F)
    • B(i);N_GUARD::S(I),XB(i)
    • S(a);N_GUARD::QAB(B)
    • S(a);OGATE,P_SPINS(a),XP(E)::QAR2(B),XS(a)
    • S(a);N_GUARD::QAB(B),XS(a)
    • S(j);N_GUARD,XS(I)::B(K)
    • S(j);N_GUARD::B(K),XS(j)
    • P(c);N_GUARD,XS(F)::P(D)
  • Tries
    • Try
      • B(K);XP(e)
      • Threat
        • B(K)
      • Vars
        • S(a);OGATE,P_SPINS(a),XP(E)::QAR2(B),XS(a)
        • B(i);N_GUARD::S(I),XB(i)
      • Refutation
        • S(j);XB(K)
    • Try
      • R(J);CHECK,XP(g)
      • Vars
        • B(i);SBLOCK,XR(J)::S(I)
      • Refutation
        • K(d);P-FLIGHT,XR(J)
  • Actual
    • B(A);
    • Vars
      • R(b);XP(D)::S(F),XR(b)
      • R(b);N_GUARD,XS(F)::QAB(B)
      • R(h);N_GUARD,XB(K)::S(F)
      • S(a);OGATE,P_SPINS(a),XP(E)::QAR2(B),XS(a)
      • S(j);N_GUARD,XS(I)::B(K)
      • P(c);N_GUARD,XS(F)::P(D)
      • P(g);XB(A)::B(K),XP(f)
      • R(b);N_GUARD::QAB(B)
      • R(b);N_GUARD::QAB(B),XR(b)
      • R(h);N_GUARD::S(F),XR(h)
      • R(h);N_GUARD::S(F)
      • B(i);N_GUARD::R1(J),XP(g)
      • B(i);N_GUARD::S(I),XB(i)
      • S(a);N_GUARD::QAB(B)
      • S(a);N_GUARD::QAB(B),XS(a)
      • S(j);N_GUARD::B(K),XS(j)
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