MESON Chess Problem Database

Problem Display
PID: 265133 (8/1K2n1Br/BnP3R1/2k2p2/8/P4N1b/1N1RP3/1r6 w - - 0 1)

Cacciari, Europe

Parallele 50, 1947

(First published on Sat May 31 1947)

8/1K2n1Br/BnP3R1/2k2p2/8/P4N1b/1N1RP3/1r6

#2

10 + 7

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sbd5
      • 2.Bd4#
    • 1...Sed5
      • 2.Sd3#
    • 1...Sxc6
      • 2.Rxc6#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Sb3#
        • 2.Se6#
      • 1...Rxb2
        • 2.Se6#
      • 1...Sbd5
        • 2.Sb3#
      • 1...Sed5
        • 2.Sd3#
        • 2.Sb3#
      • 1...f4
        • 2.Sb3#
      • 1...Kd5!
    • 1.Rd5+?
      • 1...Sbxd5
        • 2.Bd4#
      • 1...Sexd5
        • 2.Sd3#
      • 1...Kxd5!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Se6#
      • 1...Sbd5
        • 2.Bd4#
      • 1...Sed5
        • 2.Sd3#
      • 1...f4
        • 2.Se4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(e);P_PINS(A),SBLOCK::B(J)
    • S(f);P_PINB(J),SBLOCK::S(A)
    • S(f);OGATE,P_PINB(J),XP(G)::R1(H),XS(f)
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XS(A)::S(E)
        • S(e);P_PINS(A)::S(E)
        • P(d);::S(E)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • S(e);P_PINS(A),SBLOCK,XR(B)::B(J)
        • S(f);P_PINB(J),SBLOCK,XR(B)::S(A)
      • Refutation
        • K(c);P-FLIGHT,XR(B)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • S(e);P_PINS(A),SBLOCK::B(J)
      • S(f);P_PINB(J),SBLOCK::S(A)
      • P(d);N_GUARD::S(E)
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