MESON Chess Problem Database

Problem Display
PID: 243489 (1QB1q3/5p2/8/2r1P1r1/R2PNkPP/1p1pR2P/2bB4/4K2n w - - 0 1)

Buchwald, Julius

Arbejder-Skak, 1950

1QB1q3/5p2/8/2r1P1r1/R2PNkPP/1p1pR2P/2bB4/4K2n

#2

12 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sxc5?
      • threat
        • 2.Rxd3#
      • 1...Qxe5
        • 2.dxe5#
        • 2.d5#
      • 1...Rxe5!
    • 1.Sxg5?
      • threat
        • 2.Rxd3#
        • 2.Rf3#
      • 1...Qxe5
        • 2.dxc5#
      • 1...Rxe5!
    • 1.dxc5?
      • threat
        • 2.Rxd3#
        • 2.Rg3#
      • 1...Sg3
        • 2.Rxd3#
        • 2.Rxg3#
      • 1...Qxa4!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Rxd3#
      • 1...Qxe5
        • 2.dxc5#
      • 1...Rcxe5
        • 2.Sd5#
      • 1...Rgxe5
        • 2.Sh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);XR(f)
      • Threat
        • B(B)+R(C),XP(d)
      • Refutation
        • R(g);P_PINR(C),P_SPINR(g),XP(J)
    • Try
      • S(G);XR(g)
      • Threat
        • DUALS(2)
      • Vars
        • Q(i);N_GUARD,P_PINR(C),P_SPINQ(i),XP(J)::R(E)+P(F),XR(f)
      • Refutation
        • R(f);P_PINR(C),P_SPINR(f),XP(J)
    • Try
      • P(F);XR(f)
      • Threat
        • DUALS(2)
      • Refutation
        • Q(i);XR(E)
  • Actual
    • S(G);
    • Threat
      • B(B)+R(C),XP(d)
    • Vars
      • Q(i);N_GUARD,P_PINR(C),P_SPINQ(i),XP(J)::R(E)+P(F),XR(f)
      • R(f);N_GUARD,P_PINR(C),P_SPINR(f),XP(J)::S(G)
      • R(g);N_GUARD,P_PINR(C),P_SPINR(g),XP(J)::S(G)
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