MESON Chess Problem Database

Problem Display
PID: 12187 (2K3b1/1NpR4/Qpk1n3/8/4r3/2b1r3/Np4R1/6BB w - - 0 1)

Mihajloski, Zlatko

Miloseski, Bosko

1st HM., diagrammes, 1975

2K3b1/1NpR4/Qpk1n3/8/4r3/2b1r3/Np4R1/6BB

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Sb4#
    • 1...Sc5
      • 2.Sd8#
  • Tries
    • 1.Rxb2?
      • threat
        • 2.Qb5#
      • 1...Bxb2
        • 2.Sb4#
      • 1...Bb4
        • 2.Sxb4#
      • 1...Sd4!
    • 1.Qc4+?
      • 1...Sc5
        • 2.Sd8#
        • 2.Rxc7#
      • 1...Rxc4!
    • 1.Qa4+?
      • 1...b5
        • 2.Qa6#
      • 1...Rxa4!
  • Keys
    • 1.Rg6!
      • threat
        • 2.Qc4#
      • 1...Rf3
        • 2.Sd8#
      • 1...Bb4
        • 2.Sxb4#
      • 1...Bd4
        • 2.Sb4#
      • 1...Bf6
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(b);N_GUARD,S_CUTR(d)::S(C)
    • S(g);N_GUARD,SBLOCK::S(F)
  • Tries
    • Try
      • R(D);P_PINR(d),XP(a)
      • Threat
        • QAB1(E)
      • Vars
        • B(b);N_GUARD,XR(D)::S(C)
        • B(b);N_GUARD::S(C),XB(b)
      • Refutation
        • S(g);
    • Try
      • Q(E);CHECK,N_PINP(e)
      • Refutation
        • R(d);XQ(E)
    • Try
      • Q(E);CHECK,N_PINP(e)
      • Vars
        • P(e);OGATEB,P_SPINP(e)::QAR2(E)
      • Refutation
        • R(d);XQ(E)
  • Actual
    • R(D);P_PINR(d),P_PINS(g)
    • Threat
      • QAR2(E)
    • Vars
      • R(c);N_SPINR(d)::S(F)
      • B(b);N_GUARD::S(C),XB(b)
      • B(b);N_GUARD::S(C)
      • B(b);N_GUARD,N_SPINS(g)::S(C)
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