MESON Chess Problem Database

Problem Display
PID: 78726 (n1N1R3/3rrp2/Pp3RN1/1Pp5/KBk5/2PppB1b/6p1/8 w - - 0 1)

Lawton, Howard

The Tablet, 1959

(First published on Sat Nov 14 1959)

n1N1R3/3rrp2/Pp3RN1/1Pp5/KBk5/2PppB1b/6p1/8

#2

10 + 11

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Sxd6#
    • 1...Ra7
      • 2.Sd6#
    • 1...Rb7
      • 2.Sd6#
    • 1...Rc7
      • 2.Sd6#
    • 1...Re5
      • 2.Sxe5#
    • 1...Be6
      • 2.Se5#
    • 1...Sc7
      • 2.Sxb6#
    • 1...cxb4
      • 2.Rc6#
  • Tries
    • 1.Rf4+?
      • 1...Rd4
        • 2.Sd6#
      • 1...Re4!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Bd5#
      • 1...Rxd6
        • 2.Sxd6#
      • 1...cxb4
        • 2.Rc6#
      • 1...Re4
        • 2.Rxe4#
      • 1...Re5
        • 2.Sxe5#
      • 1...Be6
        • 2.Se5#
      • 1...Sc7
        • 2.Sxb6#
      • 1...d2
        • 2.Be2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(h);N_GUARD::S(I),XR(h)
    • R(h);N_GUARD,P_PINP(F)::S(I)
    • R(h);N_GUARD::S(I)
    • R(i);N_GUARD::S(H),XR(i)
    • B(d);S_CUTR(i)::S(H)
    • S(k);N_GUARD::S(I),XP(g)
    • P(f);OGATEB,XB(D)::R(G)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • R(h);P_SPINR(h)::S(I)
      • Refutation
        • R(i);P_SPINR(i)
  • Actual
    • R(G);
    • Threat
      • B(B)
    • Vars
      • R(h);XR(G)::S(I),XR(h)
      • P(f);OGATEB,XB(D)::R(G)
      • R(i);OGATE::R(J),XR(i)
      • R(i);N_GUARD::S(H),XR(i)
      • B(d);S_CUTR(i)::S(H)
      • S(k);N_GUARD::S(I),XP(g)
      • P(b);OGATEB::B(B)
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