MESON Chess Problem Database

Problem Display
PID: 142394 (8/KPR1r3/3k3n/1prNR1Pq/2pN3p/2B5/3Q4/8 w - - 0 1)

Simkhovich, Froim Markovich

5th HM., Centurini Ty. (L'Italia Scacchistica), 1924

8/KPR1r3/3k3n/1prNR1Pq/2pN3p/2B5/3Q4/8

#2

9 + 8

14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd5
      • 2.Sxb5#
    • 1...Sg4
      • 2.Sf5#
    • 1...Sf5
      • 2.Sxf5#
    • 1...Sf7
      • 2.Sf5#
    • 1...Sg8
      • 2.Sf5#
  • Tries
    • 1.Sb6?
      • threat
        • 2.Sxb5#
      • 1...Kxc7
        • 2.b8Q#
      • 1...Rcxe5
        • 2.Rc6#
      • 1...Rcxc7
        • 2.Rd5#
      • 1...Rexe5
        • 2.Rd7#
      • 1...Rexc7
        • 2.Re6#
      • 1...b4
        • 2.Sb5#
      • 1...Kxe5!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Sxb5#
      • 1...Kxe5
        • 2.Qh2#
      • 1...Kxc7
        • 2.b8Q#
      • 1...Rcxe5
        • 2.Rc6#
      • 1...Rcxc7
        • 2.Rd5#
      • 1...Rexe5
        • 2.Rd7#
      • 1...Rexc7
        • 2.Re6#
      • 1...b4
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 5
  • Sets
    • R(d);N_GUARD,XS(D)::S(C),XP(c)
    • S(g);N_GUARD::S(C)
    • S(g);N_GUARD::S(C),XS(g)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR(A)+S(C),DCHECK,XP(c)
      • Vars
        • K(f);S_FLIGHT,XR(I)::P=Q
        • R(d);N_GUARD,SBLOCK,XR(E)::R1(I)
        • R(d);N_GUARD,P_PINP(H),SBLOCK,XR(I)::R1(E)
        • R(h);N_GUARD,SBLOCK,XR(E)::R1(I)
        • R(h);N_GUARD,P_PINP(H),SBLOCK,XR(I)::R1(E)
        • P(c);::QAR(A)+S(C),DCHECK
      • Refutation
        • K(f);S_FLIGHT,XR(E)
  • Actual
    • S(D);
    • Threat
      • QAR(A)+S(C),DCHECK,XP(c)
    • Vars
      • K(f);OGATEB,S_FLIGHT,XR(E)::QAB(A)
      • K(f);S_FLIGHT,XR(I)::P=Q
      • R(d);N_GUARD,SBLOCK,XR(E)::R1(I)
      • R(d);N_GUARD,P_PINP(H),SBLOCK,XR(I)::R1(E)
      • R(h);N_GUARD,SBLOCK,XR(E)::R1(I)
      • R(h);N_GUARD,P_PINP(H),SBLOCK,XR(I)::R1(E)
      • P(c);::QAR(A)+S(C),DCHECK
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