MESON Chess Problem Database

Problem Display
PID: 16792 (2K5/5p2/2k1nR2/2P5/2Q5/8/8/8 w - - 0 1)

Schneider, Michael

Die Schwalbe, 1943

2K5/5p2/2k1nR2/2P5/2Q5/8/8/8

#2

4 + 3

2838 Fun with Chess Miniatures 1996

SOLUTION

  • SOUND
  • Tries
    • 1.Rf5?
      • threat
        • 2.Qa6#
        • 2.Qa4#
      • 1...Sxc5
        • 2.Rf6#
        • 2.Qxc5#
      • 1...Sd4
        • 2.Qa6#
      • 1...Sc7!
    • 1.Rh6?
      • 1...f5
        • 2.Rxe6#
      • 1...f6!
    • 1.Qa4+?
      • 1...Kd5
        • 2.Rf5#
      • 1...Kxc5!
  • Keys
    • 1.Rxf7!
      • 1...Sxc5
        • 2.Rf6#
      • 1...Sd4
        • 2.Rc7#
      • 1...Sf4
        • 2.Rc7#
      • 1...Sg5
        • 2.Rc7#
      • 1...Sc7
        • 2.Rxc7#
      • 1...Sg7
        • 2.Rc7#
      • 1...Sd8
        • 2.Rc7#
      • 1...Sf8
        • 2.Rc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);N_PINS(b)
      • Threat
        • DUALS(2)
      • Vars
        • S(b);::QAR2(A)
      • Refutation
        • S(b);
    • Try
      • R(C);
      • Vars
        • P(c);N_GUARD::R(C),XS(b)
      • Refutation
        • P(c);N_SPINS(b)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);N_SPINS(b),S_FLIGHT::R(C)
      • Refutation
        • K(a);N_SPINS(b),P-FLIGHT,XP(B)
  • Actual
    • R(C);N_PINS(b),XP(c)
    • Vars
      • S(b);OGATEB,P_SPINS(b),XP(B)::R(C)
      • S(b);N_GUARD::R1(C)
      • S(b);N_GUARD::R1(C),XS(b)
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