MESON Chess Problem Database

Problem Display
PID: 255824 (8/5B1p/5n1B/3P1k1r/K1NR3p/6nq/4p2b/Q3NrRb w - - 0 1)

Golubenko, Vladimir Aleksandrovich

2nd Prize, Buletin Problemistic, 1977

8/5B1p/5n1B/3P1k1r/K1NR3p/6nq/4p2b/Q3NrRb

#2

9 + 11

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe1
      • 2.Rf4#
    • 1...Rxg1
      • 2.Rf4#
    • 1...Rf4
      • 2.Rxf4#
    • 1...Bf3
      • 2.Rf4#
    • 1...Sge4
      • 2.Be6#
  • Tries
    • 1.Rg4?
      • threat
        • 2.Se3#
        • 2.Be6#
      • 1...Kxg4
        • 2.Se3#
      • 1...Qxg4
        • 2.Qe5#
      • 1...Bxd5
        • 2.Se3#
      • 1...Bxg1
        • 2.Be6#
      • 1...Sxg4
        • 2.Sd6#
      • 1...Rf4
        • 2.Rxf4#
      • 1...Rf3
        • 2.Be6#
      • 1...Rg5
        • 2.Se3#
      • 1...Sge4
        • 2.Be6#
      • 1...Sxd5!
  • Keys
    • 1.Re4!
      • threat
        • 2.Sd6#
        • 2.Qe5#
      • 1...Kxe4
        • 2.Sd6#
      • 1...Rxh6
        • 2.Qe5#
      • 1...Bxe4
        • 2.Se3#
      • 1...Sgxe4
        • 2.Be6#
      • 1...Sfxe4
        • 2.Se3#
      • 1...Rf4
        • 2.Rxf4#
      • 1...Sg4
        • 2.Sd6#
      • 1...Sd7
        • 2.Sd6#
      • 1...Se8
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 3
  • Sets
    • R(a);N_GUARD,XS(B)::R1(F)
    • R(a);N_GUARD,XR(C)::R1(F)
    • R(a);N_GUARD::R1(F),XR(a)
    • B(b);S_CUTR(a)::R1(F)
    • S(e);::B(I)
  • Tries
    • Try
      • R(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(h);P_SPINS(e),S_FLIGHT,XR(F)::S(E)
        • Q(f);P_PINS(E),SBLOCK,XR(F)::QAR1(A)
        • B(b);XP(G)::S(E)
        • B(d);XR(C)::B(I)
        • S(j);SBLOCK,XR(F)::S(E)
        • R(a);N_GUARD,P_PINS(E)::R1(F),XR(a)
        • R(a);::B(I)
        • R(i);::S(E)
        • S(e);::B(I)
      • Refutation
        • S(j);XP(G)
  • Actual
    • R(F);
    • Threat
      • DUALS(2)
    • Vars
      • K(h);S_FLIGHT,XR(F)::S(E)
      • R(i);XB(H)::QAR1(A)
      • B(b);SBLOCK,XR(F)::S(E)
      • S(e);SBLOCK,XR(F)::B(I)
      • S(j);SBLOCK,XR(F)::S(E)
      • R(a);N_GUARD::R1(F),XR(a)
      • S(j);::S(E)
      • S(j);::QAR1(A)
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