MESON Chess Problem Database

Problem Display
PID: 16793 (4K3/7b/4k1nR/4P3/4Q3/8/8/8 w - - 0 1)

Schneider, Michael

Die Schwalbe, 1943

4K3/7b/4k1nR/4P3/4Q3/8/8/8

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984
273 Mat Plus 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Bg8
      • 2.Rxg6#
  • Tries
    • 1.Rh5?
      • threat
        • 2.Qc6#
        • 2.Qc4#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Sf4
        • 2.Qc6#
      • 1...Se7!
    • 1.Qc4+?
      • 1...Kf5
        • 2.Rh5#
      • 1...Kxe5!
  • Keys
    • 1.Rxh7!
      • 1...Sxe5
        • 2.Rh6#
      • 1...Sf4
        • 2.Re7#
      • 1...Sh4
        • 2.Re7#
      • 1...Se7
        • 2.Rxe7#
      • 1...Sf8
        • 2.Re7#
      • 1...Sh8
        • 2.Re7#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • B(c);N_GUARD::R(C),XS(b)
  • Tries
    • Try
      • R(C);N_PINS(b)
      • Threat
        • DUALS(2)
      • Vars
        • S(b);OGATE,P_SPINS(b),XP(B)::QAR1(A),XS(b)
        • S(b);::QAR2(A)
      • Refutation
        • S(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),XB(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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