MESON Chess Problem Database

Problem Display
PID: 12365 (Q7/K4P2/1N1p4/3p4/pB1k1Pp1/2R5/8/1B3Nbq w - - 0 1)

Dolginovich, Nikolai Osipovich

1st Prize, Mat, 1978

Q7/K4P2/1N1p4/3p4/pB1k1Pp1/2R5/8/1B3Nbq

#2

9 + 7

3750 FIDE Album (1977-1979) 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2
      • 2.Qh8#
    • 1...Qf3
      • 2.Qh8#
    • 1...Qh2
      • 2.Qxd5#
    • 1...Qh3
      • 2.Qxd5#
    • 1...Qh4
      • 2.Qxd5#
    • 1...Qh6
      • 2.Qxd5#
    • 1...Qh7
      • 2.Qxd5#
    • 1...Qh8
      • 2.Qxd5#
      • 2.Qxh8#
    • 1...Bh2
      • 2.Qh8#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Rd3#
      • 1...Qf3
        • 2.Qh8#
      • 1...Qh3
        • 2.Qxd5#
      • 1...Qh7
        • 2.Qxd5#
      • 1...Qe4!
    • 1.Sh2?
      • threat
        • 2.Qh8#
      • 1...Qxh2
        • 2.Qxd5#
      • 1...Qe4!
    • 1.Sg3?
      • threat
        • 2.Se2#
        • 2.Sf5#
        • 2.Rd3#
      • 1...Qg2
        • 2.Sf5#
        • 2.Rd3#
        • 2.Qh8#
      • 1...Qf3
        • 2.Sf5#
        • 2.Qh8#
      • 1...Qh2
        • 2.Sf5#
        • 2.Rd3#
        • 2.Qxd5#
      • 1...Qh5
        • 2.Se2#
        • 2.Rd3#
      • 1...Qh7
        • 2.Se2#
        • 2.Qxd5#
      • 1...Qe4!
    • 1.Bf5?
      • threat
        • 2.Rd3#
      • 1...Qf3
        • 2.Qh8#
      • 1...Qh3
        • 2.Qxd5#
      • 1...Qe4!
    • 1.Bg6?
      • threat
        • 2.Rd3#
      • 1...Qf3
        • 2.Qh8#
      • 1...Qh3
        • 2.Qxd5#
      • 1...Qe4!
    • 1.Bh7?
      • threat
        • 2.Rd3#
        • 2.Qh8#
      • 1...Qxh7
        • 2.Qxd5#
      • 1...Qf3
        • 2.Qh8#
      • 1...Qh3
        • 2.Qxd5#
        • 2.Qh8#
      • 1...Qh4
        • 2.Rd3#
        • 2.Qxd5#
      • 1...Qh5
        • 2.Rd3#
      • 1...Qh6
        • 2.Rd3#
        • 2.Qxd5#
      • 1...Qe4!
    • 1.Rf3?
      • threat
        • 2.Qxd5#
      • 1...Qxf3
        • 2.Qh8#
      • 1...Qh5!
    • 1.Rh3?
      • threat
        • 2.Qh8#
      • 1...Qxh3
        • 2.Qxd5#
      • 1...Qe4!
    • 1.Rc6?
      • threat
        • 2.Bc3#
      • 1...Qf3
        • 2.Qh8#
      • 1...Qh3!
    • 1.Rc8?
      • threat
        • 2.Bc3#
      • 1...Qh3
        • 2.Qxd5#
      • 1...Qf3!
  • Keys
    • 1.Rc7!
      • threat
        • 2.Bc3#
      • 1...Qf3
        • 2.Qh8#
      • 1...Qh3
        • 2.Qxd5#

There are these versions: 235609

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • Q(b);N_GUARD::QAB(I)
    • Q(b);N_GUARD::QAR1(I),XP(f)
    • Q(b);N_GUARD,P_PINP(H)::QAR1(I),XP(f)
    • B(a);S_CUTQ(b)::QAB(I)
  • Tries
    • Try
      • S(B);
      • Threat
        • R1(C)
      • Vars
        • Q(b);N_GUARD::QAB(I)
        • Q(b);N_GUARD::QAR1(I),XP(f)
        • Q(b);N_GUARD,P_PINP(H)::QAR1(I),XP(f)
      • Refutation
        • Q(b);
    • Try
      • S(B);
      • Threat
        • QAB(I)
      • Vars
        • Q(b);N_GUARD,XS(B)::QAR1(I),XP(f)
      • Refutation
        • Q(b);
    • Try
      • S(B);
      • Threat
        • DUALS(3)
      • Refutation
        • Q(b);
    • Try
      • B(A);
      • Threat
        • R1(C)
      • Vars
        • Q(b);N_GUARD::QAB(I)
        • Q(b);N_GUARD::QAR1(I),XP(f)
      • Refutation
        • Q(b);
    • Try
      • B(A);
      • Threat
        • R1(C)
      • Vars
        • Q(b);N_GUARD::QAB(I)
        • Q(b);N_GUARD::QAR1(I),XP(f)
      • Refutation
        • Q(b);
    • Try
      • B(A);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);N_GUARD,P_PINP(H),XB(A)::QAR1(I),XP(f)
        • Q(b);::QAB(I)
        • Q(b);::R1(C)
      • Refutation
        • Q(b);
    • Try
      • R(C);
      • Threat
        • QAR1(I),XP(f)
      • Vars
        • Q(b);N_GUARD,XR(C)::QAB(I)
      • Refutation
        • Q(b);
    • Try
      • R(C);
      • Threat
        • QAB(I)
      • Vars
        • Q(b);N_GUARD,XR(C)::QAR1(I),XP(f)
      • Refutation
        • Q(b);
    • Try
      • R(C);
      • Threat
        • B(D)
      • Vars
        • Q(b);N_GUARD::QAB(I)
      • Refutation
        • Q(b);
    • Try
      • R(C);
      • Threat
        • B(D)
      • Vars
        • Q(b);N_GUARD::QAR1(I),XP(f)
      • Refutation
        • Q(b);
  • Actual
    • R(C);
    • Threat
      • B(D)
    • Vars
      • Q(b);N_GUARD::QAB(I)
      • Q(b);N_GUARD::QAR1(I),XP(f)
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