MESON Chess Problem Database

Problem Display
PID: 85939 (8/6R1/2B5/8/4N2K/2p5/2p2n1k/2R5 w - - 0 1)

Speckmann, Werner

Freie Presse, 1989

8/6R1/2B5/8/4N2K/2p5/2p2n1k/2R5

#2

5 + 4

6490 yacpdb 2009
5454 Near Snap 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Sg3?
      • threat
        • 2.Sf1#
      • 1...Sg4
        • 2.Rh1#
      • 1...Se4!
    • 1.Sg5?
      • threat
        • 2.Sf3#
      • 1...Sg4
        • 2.Rh1#
      • 1...Sd1!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Sf1#
        • 2.Sf3#
        • 2.Rg2#
      • 1...cxd2
        • 2.Rg2#
      • 1...Sd1
        • 2.Sf1#
      • 1...Se4
        • 2.Sf3#
      • 1...Sg4
        • 2.Rh1#

This anticipates 87786(1993)

This is a version of 80291

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • S(b);N_GUARD::R1(A)
      • Refutation
        • S(b);
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • S(b);N_GUARD::R1(A)
      • Refutation
        • S(b);
  • Actual
    • S(B);
    • Threat
      • DUALS(3)
    • Vars
      • P(d);XS(B)::R1(E)
      • S(b);::S(B)
      • S(b);N_GUARD::R1(A)
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