MESON Chess Problem Database

Problem Display
PID: 150608 (8/1p1p2p1/1NnPp1P1/1Q6/3NkP2/2K2p2/2p5/2B1n3 w - - 0 1)

Dawson, Thomas Rayner

The Problemist, 1932

8/1p1p2p1/1NnPp1P1/1Q6/3NkP2/2K2p2/2p5/2B1n3

#2

8 + 9

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sg2
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sb4
      • 2.Qe5#
    • 1...Sxd4
      • 2.Qe5#
    • 1...Sa5
      • 2.Qe5#
    • 1...Se5
      • 2.Qxe5#
    • 1...Sa7
      • 2.Qe5#
    • 1...Se7
      • 2.Qe5#
    • 1...Sb8
      • 2.Qe5#
    • 1...Sd8
      • 2.Qe5#
    • 1...f2
      • 2.Qe2#
    • 1...e5
      • 2.Qd5#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Sg3#
      • 1...exf5
        • 2.Qd5#
      • 1...f2!
    • 1.Sxc6?
      • threat
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
      • 1...Sd3
        • 2.Qxd3#
      • 1...f2!
    • 1.Sxe6?
      • threat
        • 2.Sg5#
        • 2.Qd5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sb4
        • 2.Sg5#
        • 2.Qe5#
      • 1...Se7
        • 2.Sg5#
        • 2.Qe5#
      • 1...dxe6!
    • 1.Qf1?
      • threat
        • 2.Qxe1#
      • 1...Sg2
        • 2.Qd3#
        • 2.Qxf3#
      • 1...Sd3
        • 2.Qxd3#
        • 2.Qxf3#
      • 1...f2
        • 2.Qe2#
      • 1...Sxd4!
  • Keys
    • 1.Qh5!
      • 1...Sxd4
        • 2.Qe5#
      • 1...Sd3
        • 2.Qxf3#
      • 1...Sg2
        • 2.Qxf3#
      • 1...Sb4
        • 2.Qe5#
      • 1...Sa5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sa7
        • 2.Qe5#
      • 1...Se7
        • 2.Qe5#
      • 1...Sb8
        • 2.Qe5#
      • 1...Sd8
        • 2.Qe5#
      • 1...f2
        • 2.Qe2#
      • 1...e5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB1(E)
    • S(a);N_GUARD::QAB1(E),XS(a)
    • S(e);N_GUARD::QAR1(E)
    • S(e);N_GUARD,XS(C)::QAR1(E)
    • S(e);N_GUARD::QAR1(E),XS(e)
    • P(c);N_GUARD::QAR2(E)
    • P(f);N_GUARD::QAB1(E)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • P(f);N_GUARD,XS(C)::QAB1(E)
      • Refutation
        • P(c);
    • Try
      • S(C);XS(e)
      • Threat
        • QAR1(E)
      • Vars
        • P(f);::QAR1(E),XP(f)
        • S(a);N_GUARD::QAB1(E),XS(a)
      • Refutation
        • P(c);
    • Try
      • S(C);XP(f)
      • Threat
        • DUALS(2)
      • Vars
        • S(e);N_GUARD::QAR1(E),XS(e)
      • Refutation
        • P(h);XS(C)
    • Try
      • Q(E);
      • Threat
        • QAR(E),XS(a)
      • Vars
        • P(c);N_GUARD::QAR2(E)
      • Refutation
        • S(e);XS(C)
  • Actual
    • Q(E);
    • Vars
      • S(e);N_GUARD,XS(C)::QAR1(E)
      • S(a);N_GUARD::QAB1(E),XP(c)
      • S(e);N_GUARD::QAR1(E)
      • S(e);N_GUARD::QAR1(E),XS(e)
      • P(c);OGATE::QAR2(E)
      • P(f);N_GUARD::QAB1(E)
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