MESON Chess Problem Database

Problem Display
PID: 77195 (3Q4/2N1p3/4r1R1/4r2p/R1pP1kb1/3pnPNp/3BP2K/1B6 w - - 0 1)

Davey, David Murray

The Tablet, 1949

(First published on Sat Oct 15 1949)

3Q4/2N1p3/4r1R1/4r2p/R1pP1kb1/3pnPNp/3BP2K/1B6

#2

11 + 10

6388 ChessMoves 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Sd5#
    • 1...Rd5
      • 2.Sxd5#
    • 1...Rf5
      • 2.Sxe6#
    • 1...Bf5
      • 2.Sxh5#
    • 1...h4
      • 2.Rxg4#
  • Tries
    • 1.Bxe3+?
      • 1...Rxe3
        • 2.Sd5#
      • 1...Kxe3!
    • 1.Qf8+?
      • 1...Rf5
        • 2.Sd5#
        • 2.Sxe6#
      • 1...Bf5
        • 2.Sxh5#
        • 2.Qh6#
      • 1...Rf6!
  • Keys
    • 1.Qd5!
      • 1...Rxd5
        • 2.Sxd5#
      • 1...Rxg6
        • 2.Qxe5#
      • 1...Bxf3
        • 2.Qxf3#
      • 1...dxe2
        • 2.Sxe2#
      • 1...Re4
        • 2.Qg5#
      • 1...Rf5
        • 2.Sxe6#
      • 1...Rg5
        • 2.Qxg5#
      • 1...Ra6
        • 2.Qxe5#
      • 1...Rb6
        • 2.Qxe5#
      • 1...Rc6
        • 2.Qxe5#
      • 1...Rd6
        • 2.Qxe5#
      • 1...Rf6
        • 2.Qxe5#
      • 1...Bf5
        • 2.Sxh5#
      • 1...c3
        • 2.dxe5#
      • 1...h4
        • 2.Rxg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • R(g);N_GUARD::S(J)
    • R(g);N_GUARD::S(J),XR(g)
    • R(g);N_GUARD,S_CUTB(f)::S(J),XR(i)
    • B(f);N_GUARD,SBLOCK,S_CUTR(g)::S(F),XP(h)
    • P(h);N_GUARD::R1(I),XB(f)
  • Tries
    • Try
      • B(B);CHECK,XS(b)
      • Vars
        • R(g);XB(B)::S(J)
      • Refutation
        • K(e);S_FLIGHT,XB(B)
    • Try
      • Q(K);CHECK
      • Refutation
        • R(i);P_SPINR(i)
  • Actual
    • Q(K);
    • Vars
      • R(g);XQ(K)::S(J),XR(g)
      • R(i);N_GUARD,XR(I)::QAB1(K),XR(g)
      • B(f);OGATE,XP(E)::QAR1(K),XB(f)
      • P(a);XP(C)::S(F),XP(a)
      • R(g);OGATE::QAB1(K)
      • R(g);N_GUARD,S_CUTB(f)::S(J),XR(i)
      • R(g);OGATE::QAB1(K),XR(g)
      • R(i);N_GUARD::QAB1(K),XR(g)
      • B(f);N_GUARD,SBLOCK,S_CUTR(g)::S(F),XP(h)
      • P(d);::R(G)+P(H),XR(g)
      • P(h);N_GUARD::R1(I),XB(f)
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