MESON Chess Problem Database

Problem Display
PID: 151854 (1bb2Q1B/p2B4/7p/2p4r/RN5p/1pp1k1P1/2P2N2/3K4 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1930

1bb2Q1B/p2B4/7p/2p4r/RN5p/1pp1k1P1/2P2N2/3K4

#2

9 + 10

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5+
      • 2.Sxd5#
    • 1...Re5
      • 2.Qf4#
    • 1...Bf4
      • 2.Qxf4#
    • 1...Be5
      • 2.Sd5#
    • 1...bxc2+
      • 2.Sxc2#
  • Tries
    • 1.Be5?
      • threat
        • 2.Sd5#
        • 2.Qf4#
      • 1...bxc2+
        • 2.Sxc2#
      • 1...Rxe5
        • 2.Qf4#
      • 1...Bxe5
        • 2.Sd5#
      • 1...cxb4
        • 2.Qf4#
      • 1...Bb7
        • 2.Qf4#
      • 1...Rf5!
    • 1.Qf5?
      • threat
        • 2.Sg4#
        • 2.Sd5#
      • 1...bxc2+
        • 2.Sxc2#
      • 1...cxb4
        • 2.Sg4#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Be5
        • 2.Sd5#
      • 1...Rg5
        • 2.Sd5#
      • 1...Bb7
        • 2.Sg4#
      • 1...Rxf5!
  • Keys
    • 1.Bc6!
      • threat
        • 2.Qf3#
      • 1...Rd5+
        • 2.Sxd5#
      • 1...Bg4+
        • 2.Sxg4#
      • 1...bxc2+
        • 2.Sxc2#
      • 1...Re5
        • 2.Qf4#
      • 1...Rf5
        • 2.Sg4#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Be5
        • 2.Sd5#
      • 1...Bf5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(f);CHECK,N_GUARD::S(F),XR(f)
    • R(f);S_CUTB(i)::QAB1(H)
    • B(i);N_GUARD::QAB1(H),XB(i)
    • B(i);S_CUTR(f)::S(F)
    • P(a);CHECK,XP(B)::S(F),XP(a)
  • Tries
    • Try
      • B(I);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);CHECK,XP(B)::S(F),XP(a)
        • R(f);XB(I)::QAB1(H)
        • B(i);XB(I)::S(F)
        • P(e);XS(F)::QAB1(H)
        • B(j);::QAB1(H)
      • Refutation
        • R(f);
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);CHECK,XP(B)::S(F),XP(a)
        • P(e);XS(F)::S(C)
        • B(i);N_GUARD::QAB1(H),XB(i)
        • B(i);::S(F)
        • R(f);::S(F)
        • B(j);::S(C)
      • Refutation
        • R(f);XQ(H)
  • Actual
    • B(G);
    • Threat
      • QAR1(H)
    • Vars
      • R(f);CHECK,N_GUARD::S(F),XR(f)
      • B(j);CHECK,N_GUARD::S(C),XB(j)
      • P(a);CHECK,XP(B)::S(F),XP(a)
      • R(f);S_CUTB(i)::QAB1(H)
      • R(f);S_CUTB(j)::S(C)
      • B(i);N_GUARD::QAB1(H),XB(i)
      • B(i);S_CUTR(f)::S(F)
      • B(j);S_CUTR(f)::QAB(H),XP(e)
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