MESON Chess Problem Database

Problem Display
PID: 271951 (2rN3n/8/B1P1p3/2K1kpPb/p6p/5P1r/1n2P3/2B1R3 w - - 0 1)

Lawton, Howard

Sunday Referee, 1934

(First published on Sun Jan 28 1934)

2rN3n/8/B1P1p3/2K1kpPb/p6p/5P1r/1n2P3/2B1R3

#2

9 + 10

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf3
      • 2.exf3#
    • 1...Rxc6+
      • 2.Sxc6#
    • 1...Bxf3
      • 2.exf3#
    • 1...Sd3+
      • 2.exd3#
    • 1...Sg6
      • 2.Sf7#
  • Keys
    • 1.Bd3!
      • threat
        • 2.f4#
      • 1...Rxc6+
        • 2.Sxc6#
      • 1...Sxd3+
        • 2.exd3#
      • 1...Rxf3
        • 2.exf3#
      • 1...Bxf3
        • 2.exf3#
      • 1...Sg6
        • 2.Sf7#
      • 1...f4
        • 2.Bxb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(b);OGATE,XP(D)::R(B)+P(C),XR(b)
    • R(i);CHECK,XP(H)::S(I),XR(i)
    • B(g);OGATE,XP(D)::R(B)+P(C),XB(g)
    • S(a);CHECK,OGATE::R(B)+P(C),XS(a)
    • S(j);N_GUARD,S_CUTB(g)::S(I)
  • Actual
    • B(G);
    • Threat
      • P(D)
    • Vars
      • R(i);CHECK,XP(H)::S(I),XR(i)
      • S(a);CHECK,OGATE,XB(G)::R(B)+P(C),XS(a)
      • R(b);OGATE,XP(D)::R(B)+P(C),XR(b)
      • B(g);OGATE,XP(D)::R(B)+P(C),XB(g)
      • S(j);N_GUARD,S_CUTB(g)::S(I)
      • P(f);SBLOCK::B(A),XS(a)
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