MESON Chess Problem Database

Problem Display
PID: 53117 (8/4pqb1/n3RrR1/2P2kPp/2pQ1N2/3p4/3B4/1B3K2 w - - 0 1)

Apro, Laszlo

Schach-Echo, 1933

8/4pqb1/n3RrR1/2P2kPp/2pQ1N2/3p4/3B4/1B3K2

#2

9 + 9

SOLUTION

  • SOUND
  • Tries
    • 1.Qxd3+?
      • 1...Kg4
        • 2.Qh3#
      • 1...cxd3!
  • Keys
    • 1.Sxd3!
      • threat
        • 2.Qe4#
      • 1...Kxe6+
        • 2.Sf4#
      • 1...Kxg6+
        • 2.Sf2#
      • 1...Qxe6
        • 2.Se5#
      • 1...Rxe6
        • 2.Se5#
      • 1...Sxc5
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK,XP(a)
      • Vars
        • K(c);P_PINS(E),S_FLIGHT::QAB1(D)
      • Refutation
        • P(b);P_SPINP(b),XQ(D)
  • Actual
    • S(E);XP(a)
    • Threat
      • QAB1(D)
    • Vars
      • K(c);CHECK,N_GUARD,P_SPINR(f),S_FLIGHT,XR(H)::S(E)
      • K(c);CHECK,N_GUARD,P_SPINR(f),S_FLIGHT,XR(I)::B(A)+S(E)
      • Q(h);SBLOCK,XR(H)::B(A)+S(E)
      • R(f);XR(H)::B(A)+S(E)
      • S(e);XP(F)::B(A)+S(E),XS(e)
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