MESON Chess Problem Database

Problem Display
PID: 218292 (8/6K1/2NN3R/6p1/7r/1ppk4/4R3/5B2 w - - 0 1)

Greenwood, William M

British Chess Magazine, 1921

8/6K1/2NN3R/6p1/7r/1ppk4/4R3/5B2

#2

6 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rh3
      • 2.Rxh3#
    • 1...Ra4
      • 2.Rh3#
    • 1...Rb4
      • 2.Rh3#
    • 1...Rc4
      • 2.Rh3#
    • 1...Rd4
      • 2.Se5#
      • 2.Rh3#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Se5#
      • 1...Kc4
        • 2.Re5#
      • 1...Re4!
  • Keys
    • 1.Sc4!
      • threat
        • 2.S4e5#
      • 1...Kxc4
        • 2.Re5#
      • 1...Rxc4
        • 2.Rh3#
      • 1...c2
        • 2.Re3#
      • 1...Re4
        • 2.Rd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(d);OGATE::R(E),XR(d)
    • R(d);OGATE::R(E)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(C)
      • Vars
        • K(c);S_FLIGHT::B(A)+R(B)
      • Refutation
        • R(d);
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(c);S_FLIGHT,XS(D)::B(A)+R(B)
      • R(d);OGATE,SBLOCK,XS(D)::R(E)
      • P(b);SBLOCK::B(A)+R(B),DCHECK
      • R(d);SBLOCK::B(A)+R(B),DCHECK
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