MESON Chess Problem Database

Problem Display
PID: 110664 (NnQ2b2/5P2/n2k1PRp/rp1ppP1K/1p1N3B/1p6/1P6/8 w - - 0 1)

Goulty, Allison Howard

British Chess Magazine, 1954

NnQ2b2/5P2/n2k1PRp/rp1ppP1K/1p1N3B/1p6/1P6/8

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sxb5#
    • 1...Ra2
      • 2.Sxb5#
    • 1...Ra3
      • 2.Sxb5#
    • 1...Ra4
      • 2.Sxb5#
    • 1...Be7
      • 2.fxe7#
    • 1...Bg7
      • 2.fxg7#
    • 1...Sc5
      • 2.Qc7#
    • 1...Sc7
      • 2.Qxc7#
    • 1...Sc6
      • 2.Qxc6#
    • 1...Sd7
      • 2.Qc6#
    • 1...exd4
      • 2.Bg3#
    • 1...e4
      • 2.Bg3#
  • Tries
    • 1.Kg4?
      • 1...exd4
        • 2.Bg3#
      • 1...Sc7
        • 2.Qxc7#
      • 1...Sc6
        • 2.Qxc6#
      • 1...e4
        • 2.Bg3#
      • 1...Ra1
        • 2.Sxb5#
      • 1...Ra2
        • 2.Sxb5#
      • 1...Ra3
        • 2.Sxb5#
      • 1...Ra4
        • 2.Sxb5#
      • 1...Be7
        • 2.fxe7#
      • 1...Bg7
        • 2.fxg7#
      • 1...Sc5
        • 2.Qc7#
      • 1...Sd7
        • 2.Qc6#
      • 1...h5+!
    • 1.Sxb3?
      • threat
        • 2.Qe6#
      • 1...Sc7
        • 2.Qxc7#
      • 1...Sc5
        • 2.Qc7#
      • 1...Sd7!
    • 1.Bg5?
      • 1...exd4
        • 2.Bf4#
      • 1...Sc7
        • 2.Qxc7#
      • 1...Sc6
        • 2.Qxc6#
      • 1...e4
        • 2.Bf4#
      • 1...Be7
        • 2.fxe7#
      • 1...Ra1
        • 2.Sxb5#
      • 1...Ra2
        • 2.Sxb5#
      • 1...Ra3
        • 2.Sxb5#
      • 1...Ra4
        • 2.Sxb5#
      • 1...Bg7
        • 2.fxg7#
      • 1...Sc5
        • 2.Qc7#
      • 1...Sd7
        • 2.Qc6#
      • 1...hxg5!
    • 1.Rxh6?
      • 1...exd4
        • 2.Bg3#
      • 1...Sc7
        • 2.Qxc7#
      • 1...Sc6
        • 2.Qxc6#
      • 1...e4
        • 2.Bg3#
      • 1...Be7
        • 2.fxe7#
      • 1...Ra1
        • 2.Sxb5#
      • 1...Ra2
        • 2.Sxb5#
      • 1...Ra3
        • 2.Sxb5#
      • 1...Ra4
        • 2.Sxb5#
      • 1...Bg7
        • 2.fxg7#
      • 1...Sc5
        • 2.Qc7#
      • 1...Sd7
        • 2.Qc6#
      • 1...Bxh6!
  • Keys
    • 1.Sb6!
      • 1...exd4
        • 2.Bg3#
      • 1...Sc7
        • 2.Qxf8#
      • 1...Sc6
        • 2.Qxc6#
      • 1...e4
        • 2.Bg3#
      • 1...Ra1
        • 2.Sxb5#
      • 1...Ra2
        • 2.Sxb5#
      • 1...Ra3
        • 2.Sxb5#
      • 1...Ra4
        • 2.Sxb5#
      • 1...Be7
        • 2.fxe7#
      • 1...Bg7
        • 2.fxg7#
      • 1...Sc5
        • 2.Qxb8#
      • 1...Sd7
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD::S(B),XP(d)
    • B(k);OGATE::R(G)+P(F),XB(k)
    • S(g);N_GUARD::QAB1(J)
    • S(g);N_GUARD::QAB1(J),XS(g)
    • S(j);N_GUARD::QAR1(J),XS(j)
    • S(j);N_GUARD::QAR1(J)
    • P(f);OGATEB,XS(B)::B(C)
    • P(f);OGATEB::B(C)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • P(f);OGATEB,XS(B)::B(C)
        • S(g);N_GUARD::QAB1(J),XS(g)
        • S(j);N_GUARD::QAR1(J),XS(j)
        • P(f);OGATEB::B(C)
        • R(c);N_GUARD::S(B),XP(d)
        • B(k);OGATE::R(G)+P(F),XB(k)
        • S(g);N_GUARD::QAB1(J)
        • S(j);N_GUARD::QAR1(J)
      • Refutation
        • P(i);CHECK
    • Try
      • S(B);XP(a)
      • Threat
        • QAR1(J)
      • Vars
        • S(g);N_GUARD::QAB1(J),XS(g)
        • S(g);N_GUARD::QAB1(J)
      • Refutation
        • S(j);
    • Try
      • B(C);
      • Vars
        • P(f);OGATEB,XS(B)::B(C)
        • S(g);N_GUARD::QAB1(J),XS(g)
        • S(j);N_GUARD::QAR1(J),XS(j)
        • P(f);OGATEB::B(C)
        • B(k);OGATE::R(G)+P(F),XB(k)
        • R(c);N_GUARD::S(B),XP(d)
        • S(g);N_GUARD::QAB1(J)
        • S(j);N_GUARD::QAR1(J)
      • Refutation
        • P(i);XB(C)
    • Try
      • R(G);XP(i)
      • Vars
        • P(f);OGATEB,XS(B)::B(C)
        • S(g);N_GUARD::QAB1(J),XS(g)
        • S(j);N_GUARD::QAR1(J),XS(j)
        • P(f);OGATEB::B(C)
        • B(k);OGATE::R(G)+P(F),XB(k)
        • R(c);N_GUARD::S(B),XP(d)
        • S(g);N_GUARD::QAB1(J)
        • S(j);N_GUARD::QAR1(J)
      • Refutation
        • B(k);XR(G)
  • Actual
    • S(I);
    • Vars
      • P(f);OGATEB,XS(B)::B(C)
      • S(g);SBLOCK::QAB(J),XB(k)
      • S(j);N_GUARD::QAR1(J),XS(j)
      • P(f);OGATEB::B(C)
      • R(c);N_GUARD::S(B),XP(d)
      • B(k);OGATE::R(G)+P(F),XB(k)
      • S(g);N_GUARD,SBLOCK::QAB(J),XS(j)
      • S(j);N_GUARD::QAR1(J)
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