MESON Chess Problem Database

Problem Display
PID: 17842 (3r4/p1pR1PP1/K4N2/2p1kpbn/Q4N2/3R4/8/2nr4 w - - 0 1)

Hassberg, Eric Manfred

4th Prize, Gross MT, 1951

3r4/p1pR1PP1/K4N2/2p1kpbn/Q4N2/3R4/8/2nr4

#2

8 + 10

5064 100 Years of the American Two-move Chess Problem 1962

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf6
      • 2.Qa1#
    • 1...Rxd7
      • 2.Sxd7#
    • 1...Bxf6
      • 2.Re3#
    • 1...Sxf6
      • 2.Re7#
  • Tries
    • 1.Sg6+?
      • 1...Ke6
        • 2.Qc6#
      • 1...Kxf6!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Sg6#
      • 1...Kxf4
        • 2.Qxc7#
      • 1...Bxf4
        • 2.Re7#
      • 1...Sxf4
        • 2.Re3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • K(d);S_FLIGHT,XS(E)::QAB(B)
    • R(j);XR(F)::S(E),XR(j)
    • B(f);SBLOCK,XS(E)::R(A)
    • S(g);SBLOCK,XS(E)::R(F)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR2(B)
      • Refutation
        • K(d);S_FLIGHT,XS(E)
  • Actual
    • Q(B);
    • Threat
      • S(C)
    • Vars
      • K(d);S_FLIGHT,XS(C)::QAB(B),XP(i)
      • B(f);SBLOCK,XS(C)::R(F)
      • S(g);SBLOCK,XS(C)::R(A)
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