MESON Chess Problem Database

Problem Display
PID: 36853 (7Q/3N1RN1/1b2B1K1/1p4p1/2p1k1p1/q7/1p2P3/6B1 w - - 0 1)

Gorbatenko, Yuri Grigorevich

Kirillov, Valery Afanasievich

Nefedov, Vladislav Valerevich

3rd Prize, Shakhmatny Vestnik, 1993

7Q/3N1RN1/1b2B1K1/1p4p1/2p1k1p1/q7/1p2P3/6B1

#2

8 + 8

3705 Album Russia (1992-1994) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Qb4
      • 2.Qh1#
      • 2.Qa8#
    • 1...Qc5
      • 2.Qh1#
    • 1...Qd6
      • 2.Qh1#
    • 1...Qe7
      • 2.Qh1#
      • 2.Qa8#
    • 1...Qf8
      • 2.Qh1#
    • 1...Qa1
      • 2.Qh1#
    • 1...Qa2
      • 2.Qh1#
    • 1...Qb3
      • 2.Qa8#
    • 1...Qc3
      • 2.Qa8#
    • 1...Qf3
      • 2.Qa8#
    • 1...Qg3
      • 2.Qa8#
    • 1...Qh3
      • 2.Qa8#
    • 1...Qa4
      • 2.Qh1#
    • 1...Qa5
      • 2.Qh1#
    • 1...Qa6
      • 2.Qh1#
    • 1...Qa7
      • 2.Qh1#
    • 1...Qa8
      • 2.Qh1#
      • 2.Qxa8#
    • 1...Ba5
      • 2.Qa8#
    • 1...Ba7
      • 2.Qa8#
    • 1...c3
      • 2.Qh1#
  • Tries
    • 1.Sh5?
      • threat
        • 2.Qe5#
      • 1...Qc5
        • 2.Sg3#
      • 1...Qc3
        • 2.Qa8#
      • 1...Qg3
        • 2.Sxg3#
        • 2.Qa8#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Bc7
        • 2.Qd4#
      • 1...Qd6!
    • 1.Se8?
      • threat
        • 2.Qe5#
      • 1...Qc5
        • 2.Qh1#
      • 1...Qd6
        • 2.Sxd6#
        • 2.Qh1#
      • 1...Qc3
        • 2.Sd6#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Bc7
        • 2.Qd4#
      • 1...Qg3!
    • 1.Bf5+?
      • 1...Kf4
        • 2.Sh5#
      • 1...Kd5!
    • 1.Qb8?
      • threat
        • 2.Sf6#
        • 2.Qe5#
        • 2.Qb7#
      • 1...Bxg1
        • 2.Qe5#
      • 1...Qe3
        • 2.Qe5#
      • 1...Bf2
        • 2.Qe5#
      • 1...Be3
        • 2.Qe5#
      • 1...Qg3
        • 2.Sf6#
        • 2.Qb7#
        • 2.Qa8#
      • 1...Qc5
        • 2.Sf6#
      • 1...Qe7
        • 2.Qe5#
        • 2.Qb7#
        • 2.Qa8#
      • 1...Qc3
        • 2.Qb7#
        • 2.Qa8#
      • 1...Qd3
        • 2.Sf6#
        • 2.Qe5#
      • 1...Qf3
        • 2.Qe5#
        • 2.Qb7#
        • 2.Qa8#
      • 1...Qa6
        • 2.Sf6#
        • 2.Qe5#
      • 1...Qa7
        • 2.Sf6#
        • 2.Qe5#
      • 1...Qa8
        • 2.Sf6#
        • 2.Qe5#
        • 2.Qxa8#
      • 1...Bd4
        • 2.Qb7#
      • 1...Bc7
        • 2.Qb7#
      • 1...Bd8
        • 2.Qe5#
        • 2.Qb7#
      • 1...Qd6!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Qe5#
      • 1...Kf4
        • 2.Qe5#
      • 1...Qc5
        • 2.Sg3#
      • 1...Qd6
        • 2.Sxd6#
      • 1...Qc3
        • 2.Sd6#
      • 1...Qg3
        • 2.Sxg3#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Bc7
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 3
    • REMOVED MATES = 13
  • Sets
    • Q(b);N_GUARD::QAB(H)
    • Q(b);N_GUARD,P_PINB(C)::QAB(H)
    • B(h);S_CUTQ(b)::QAB(H)
    • P(c);S_CUTQ(b)::QAB(H)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAR1(H)
      • Vars
        • Q(b);N_GUARD::S(G)
        • Q(b);N_GUARD::QAB(H)
        • B(h);N_GUARD::QAR1(H),XB(h)
        • B(h);N_GUARD::QAR1(H)
      • Refutation
        • Q(b);P_PINB(C)
    • Try
      • S(G);
      • Threat
        • QAR1(H)
      • Vars
        • Q(b);N_GUARD::QAB(H)
        • Q(b);N_GUARD::S(G)
        • B(h);N_GUARD::QAR1(H),XB(h)
        • B(h);N_GUARD::QAR1(H)
      • Refutation
        • Q(b);
    • Try
      • B(C);CHECK
      • Vars
        • K(d);P-FLIGHT::S(G)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(H);
      • Threat
        • DUALS(3)
      • Vars
        • B(h);XB(A)::QAR1(H)
        • Q(b);::QAR1(H)
        • B(h);::QAR1(H)
        • Q(b);::S(E)
        • B(h);::QAB(H)
      • Refutation
        • Q(b);P_PINB(C)
  • Actual
    • S(G);
    • Threat
      • QAR1(H)
    • Vars
      • K(d);P-FLIGHT::QAB1(H)
      • Q(b);N_GUARD::S(G)
      • Q(b);N_GUARD,P_PINB(C)::S(G),XQ(b)
      • Q(b);N_GUARD::S(G),XQ(b)
      • B(h);N_GUARD::QAR1(H),XB(h)
      • B(h);N_GUARD::QAR1(H)
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