MESON Chess Problem Database

Problem Display
PID: 255023 (3R4/B4pnp/3K1Pqp/3N1pPb/1p2k2r/1P4PP/2P2R2/3B4 w - - 0 1)

Heddon, SR

Western Morning News, 1921

(First published on Sat Oct 15 1921)

3R4/B4pnp/3K1Pqp/3N1pPb/1p2k2r/1P4PP/2P2R2/3B4

#2

12 + 10

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf6+
      • 2.Sxf6#
    • 1...Rxh3
      • 2.Rf4#
    • 1...Rf4
      • 2.Rxf4#
    • 1...Rg4
      • 2.Bf3#
    • 1...Bf3
      • 2.Bxf3#
    • 1...Bg4
      • 2.Rf4#
    • 1...Se8+
      • 2.Rxe8#
  • Tries
    • 1.Be2?
      • threat
        • 2.Bd3#
      • 1...Qxf6+
        • 2.Sxf6#
      • 1...Se8+
        • 2.Rxe8#
      • 1...Bxe2!
  • Keys
    • 1.g4!
      • threat
        • 2.Bf3#
        • 2.Rf4#
      • 1...Qxf6+
        • 2.Sxf6#
      • 1...Se8+
        • 2.Rxe8#
      • 1...Qxg5
        • 2.Bf3#
      • 1...Rxh3
        • 2.Rf4#
      • 1...Rxg4
        • 2.Bf3#
      • 1...Bxg4
        • 2.Rf4#
      • 1...fxg4
        • 2.Rf4#
      • 1...hxg5
        • 2.Bf3#
      • 1...Se6
        • 2.Bf3#
      • 1...f4
        • 2.Bf3#
        • 2.Rxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • Q(f);CHECK,XP(J)::S(G),XQ(f)
    • R(c);N_GUARD,XP(F)::R1(C)
    • R(c);N_GUARD::R1(C),XR(c)
    • R(c);S_CUTB(e)::B(A)
    • B(e);N_GUARD::B(A),XB(e)
    • B(e);S_CUTR(c)::R1(C)
    • S(i);CHECK,N_GUARD::R(L),XS(i)
  • Tries
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • Q(f);CHECK,XP(J)::S(G),XQ(f)
        • S(i);CHECK,N_GUARD::R(L),XS(i)
      • Refutation
        • B(e);XB(A)
  • Actual
    • P(E);
    • Threat
      • DUALS(2)
    • Vars
      • Q(f);CHECK,XP(J)::S(G),XQ(f)
      • S(i);CHECK,N_GUARD::R(L),XS(i)
      • Q(f);N_PINP(J),XP(H)::B(A)
      • R(c);XP(F)::R1(C)
      • R(c);XP(E)::B(A)
      • B(e);XP(E)::R1(C)
      • P(d);XP(E)::R1(C)
      • P(g);XP(H)::B(A)
      • S(i);N_PINP(J)::B(A)
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