MESON Chess Problem Database

Problem Display
PID: 17018 (2Q4K/6R1/8/8/7k/8/6rr/6R1 w - - 0 1)

Hassberg, Eric Manfred

New York Post, 1945

2Q4K/6R1/8/8/7k/8/6rr/6R1

#2

4 + 3

70 American Chess Problemist 1949
5064 100 Years of the American Two-move Chess Problem 1962
788 US Problem Bulletin 1964
5063 Spectacular Chess Problems 1965
2012 Miniature Chess Problems from Many Countries 1981
3295 Einfuhrung in die Welt des Schachproblem 1984
3310 2345 Chess Problems 1997
23 Die Schwalbe 2005
3713 Snap 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Rh7#
      • 2.Qg4#
    • 1...Rb2
      • 2.Rh7#
      • 2.Qg4#
    • 1...Rc2
      • 2.Rh7#
      • 2.Qg4#
    • 1...Rd2
      • 2.Rh7#
      • 2.Qg4#
    • 1...Re2
      • 2.Rh7#
      • 2.Qg4#
    • 1...Rf2
      • 2.Rh7#
      • 2.Qg4#
    • 1...Rg4
      • 2.Qxg4#
  • Tries
    • 1.R1xg2?
      • threat
        • 2.Rxh2#
        • 2.Rh7#
        • 2.Qg4#
      • 1...Kh5
        • 2.Rxh2#
        • 2.Rh7#
      • 1...Rh1
        • 2.Rh7#
        • 2.Qg4#
      • 1...Rh3
        • 2.Rh7#
        • 2.Qg4#
      • 1...Rxg2!
    • 1.R7xg2?
      • threat
        • 2.Rxh2#
        • 2.Qg4#
      • 1...Kh5
        • 2.Rxh2#
      • 1...Rh1
        • 2.Rxh1#
        • 2.Qg4#
      • 1...Rh3
        • 2.Qg4#
      • 1...Rxg2!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qh7#
      • 1...Kh3
        • 2.Qh7#
      • 1...Kh5
        • 2.Qh7#
      • 1...Rxc2
        • 2.Rh7#
      • 1...Rxg7
        • 2.Qxh2#
      • 1...Rg5
        • 2.Qxh2#
      • 1...Rg6
        • 2.Qxh2#

Anticipated by 120762(0000), 120996(0000)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • R(a);N_GUARD::QAR1(C),XR(a)
  • Tries
    • Try
      • R(A);XR(a)
      • Threat
        • DUALS(3)
      • Refutation
        • R(b);XR(A)
    • Try
      • R(B);XR(a)
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::R(B),XR(b)
        • R(b);::QAR1(C)
      • Refutation
        • R(b);XR(B)
  • Actual
    • Q(C);
    • Threat
      • QAR(C)
    • Vars
      • K(c);P-FLIGHT::QAR(C)
      • K(c);P-FLIGHT::QAR2(C)
      • R(a);XQ(C)::R(B)
      • R(a);OGATE,XR(B)::QAR2(C),XR(b)
      • R(a);OGATE::QAR2(C),XR(b)
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