MESON Chess Problem Database

Problem Display
PID: 148871 (5n2/3p1p1p/2pPpk1P/2K1N2b/6p1/4Q1Nn/8/8 w - - 0 1)

Dawson, Thomas Rayner

Natal Mercury, 1914

(First published on Sat Dec 12 1914)

5n2/3p1p1p/2pPpk1P/2K1N2b/6p1/4Q1Nn/8/8

#2

6 + 10

15256 TRD Scrapbook 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Bg6
      • 2.Sxg4#
    • 1...Sg1
      • 2.Qf4#
    • 1...Sf2
      • 2.Qf4#
    • 1...Sf4
      • 2.Qxf4#
    • 1...Sg5
      • 2.Qf4#
    • 1...Sg6
      • 2.Sxd7#
  • Tries
    • 1.Kb4?
      • 1...Sf4
        • 2.Qxf4#
      • 1...Bg6
        • 2.Sxg4#
      • 1...Sg1
        • 2.Qf4#
      • 1...Sf2
        • 2.Qf4#
      • 1...Sg5
        • 2.Qf4#
      • 1...Sg6
        • 2.Sxd7#
      • 1...c5+!
    • 1.Kc4?
      • 1...Sf4
        • 2.Qxf4#
      • 1...Bg6
        • 2.Sxg4#
      • 1...Sg1
        • 2.Qf4#
      • 1...Sf2
        • 2.Qf4#
      • 1...Sg5
        • 2.Qf4#
      • 1...Sg6
        • 2.Sxd7#
      • 1...c5!
    • 1.Kd4?
      • 1...Sf4
        • 2.Qxf4#
      • 1...Bg6
        • 2.Sxg4#
      • 1...Sg1
        • 2.Qf4#
      • 1...Sf2
        • 2.Qf4#
      • 1...Sg5
        • 2.Qf4#
      • 1...Sg6
        • 2.Sxd7#
      • 1...c5+!
    • 1.Kb6?
      • 1...Sf4
        • 2.Qxf4#
      • 1...Bg6
        • 2.Sxg4#
      • 1...Sg1
        • 2.Qf4#
      • 1...Sf2
        • 2.Qf4#
      • 1...Sg5
        • 2.Qf4#
      • 1...Sg6
        • 2.Sxd7#
      • 1...c5!
    • 1.Qc1?
      • 1...Sf4
        • 2.Qxf4#
      • 1...Bg6
        • 2.Sxg4#
      • 1...Sg1
        • 2.Qf4#
      • 1...Sf2
        • 2.Qf4#
      • 1...Sg5
        • 2.Qf4#
      • 1...Sg6
        • 2.Sxd7#
      • 1...Kxe5!
  • Keys
    • 1.Qd2!
      • 1...Kxe5
        • 2.Qd4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Bg6
        • 2.Sxg4#
      • 1...Sg1
        • 2.Qf4#
      • 1...Sf2
        • 2.Qf4#
      • 1...Sg5
        • 2.Qf4#
      • 1...Sg6
        • 2.Sxd7#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD,SBLOCK::S(D),XP(b)
    • S(a);N_GUARD::QAR2(A)
    • S(a);N_GUARD::QAR2(A),XS(a)
    • S(j);N_GUARD,SBLOCK::S(D),XP(g)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Vars
        • S(a);N_GUARD::QAR2(A),XS(a)
        • B(c);N_GUARD,SBLOCK::S(D),XP(b)
        • S(a);N_GUARD::QAR2(A)
        • S(j);N_GUARD,SBLOCK::S(D),XP(g)
      • Refutation
        • P(d);CHECK
    • Try
      • K(C);P-FLIGHT
      • Vars
        • S(a);N_GUARD::QAR2(A),XS(a)
        • B(c);N_GUARD,SBLOCK::S(D),XP(b)
        • S(a);N_GUARD::QAR2(A)
        • S(j);N_GUARD,SBLOCK::S(D),XP(g)
      • Refutation
        • P(d);
    • Try
      • K(C);S_FLIGHT
      • Vars
        • S(a);N_GUARD::QAR2(A),XS(a)
        • B(c);N_GUARD,SBLOCK::S(D),XP(b)
        • S(a);N_GUARD::QAR2(A)
        • S(j);N_GUARD,SBLOCK::S(D),XP(g)
      • Refutation
        • P(d);CHECK
    • Try
      • K(C);S_FLIGHT
      • Vars
        • S(a);N_GUARD::QAR2(A),XS(a)
        • B(c);N_GUARD,SBLOCK::S(D),XP(b)
        • S(a);N_GUARD::QAR2(A)
        • S(j);N_GUARD,SBLOCK::S(D),XP(g)
      • Refutation
        • P(d);
    • Try
      • Q(A);
      • Vars
        • S(a);N_GUARD::QAR2(A),XS(a)
        • B(c);N_GUARD,SBLOCK::S(D),XP(b)
        • S(a);N_GUARD::QAR2(A)
        • S(j);N_GUARD,SBLOCK::S(D),XP(g)
      • Refutation
        • K(f);S_FLIGHT,XS(D)
  • Actual
    • Q(A);
    • Vars
      • K(f);OGATEB,S_FLIGHT,XS(D)::QAB1(A)
      • S(a);N_GUARD::QAR2(A),XS(a)
      • B(c);N_GUARD,SBLOCK::S(D),XP(b)
      • S(a);N_GUARD::QAR2(A)
      • S(j);N_GUARD,SBLOCK::S(D),XP(g)
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