MESON Chess Problem Database

Problem Display
PID: 244801 (k1K5/3p4/1PP5/1PR1b3/4r3/1p6/N4B2/R2q4 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Thema Danicum, 1983

k1K5/3p4/1PP5/1PR1b3/4r3/1p6/N4B2/R2q4

#2

8 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sc1+?
      • 1...Ra4
        • 2.Rxa4#
      • 1...Bxa1!
    • 1.Sc3+?
      • 1...Ra4
        • 2.Rxa4#
      • 1...Qxa1!
    • 1.Rcc1?
      • threat
        • 2.b7#
      • 1...Re3
        • 2.Sc3#
      • 1...Rd4
        • 2.Sb4#
      • 1...Bd4
        • 2.Sc3#
      • 1...Qd4!
    • 1.Rc3?
      • threat
        • 2.b7#
      • 1...Qd4
        • 2.Sb4#
      • 1...Re3
        • 2.Sc1#
      • 1...Bd4
        • 2.Sc1#
      • 1...Rd4!
  • Keys
    • 1.Rc4!
      • threat
        • 2.b7#
      • 1...Qd4
        • 2.Sc3#
      • 1...Re3
        • 2.Ra4#
      • 1...Rd4
        • 2.Sc1#
      • 1...Bd4
        • 2.Ra4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::R(A),XR(c)
      • Refutation
        • B(d);XR(A)
    • Try
      • S(B);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::R(A),XR(c)
      • Refutation
        • Q(a);XR(A)
    • Try
      • R(E);
      • Threat
        • P(F)
      • Vars
        • R(c);N_GUARD::R(A)+S(B)
        • R(c);S_CUTB(d)::R(A)+S(B)
        • B(d);S_CUTR(c)::R(A)+S(B)
      • Refutation
        • Q(a);
    • Try
      • R(E);
      • Threat
        • P(F)
      • Vars
        • Q(a);N_GUARD::R(A)+S(B)
        • R(c);N_GUARD::R(A)+S(B)
        • B(d);S_CUTR(c)::R(A)+S(B)
      • Refutation
        • R(c);
  • Actual
    • R(E);
    • Threat
      • P(F)
    • Vars
      • Q(a);N_GUARD::R(A)+S(B)
      • R(c);N_GUARD::R(E)
      • R(c);S_CUTB(d)::R(A)+S(B)
      • B(d);S_CUTR(c)::R(E)
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