MESON Chess Problem Database

Problem Display
PID: 69727 (1B6/8/pQ1q3r/P3kp1N/R4Nn1/2P3r1/3P4/K5b1 w - - 0 1)

Amirov, Talip Khasanovich

Hlas l'udu, 1971

1B6/8/pQ1q3r/P3kp1N/R4Nn1/2P3r1/3P4/K5b1

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Qd4#
      • 2.Qc5#
    • 1...Rxh5
      • 2.Qxd6#
    • 1...Rh7
      • 2.Bxd6#
      • 2.Qxd6#
    • 1...Rh8
      • 2.Bxd6#
      • 2.Qxd6#
    • 1...Bh2
      • 2.Qd4#
      • 2.Qc5#
    • 1...Bd4
      • 2.Qxd4#
    • 1...Bc5
      • 2.Qxc5#
    • 1...Sf2
      • 2.Qd4#
      • 2.Qc5#
    • 1...Se3
      • 2.Qd4#
    • 1...Sf6
      • 2.Bxd6#
      • 2.Qxd6#
  • Tries
    • 1.Qb5+?
      • 1...Bc5
        • 2.Qxc5#
      • 1...axb5!
    • 1.Qc6?
      • threat
        • 2.Qd5#
      • 1...Rxh5
        • 2.Qxd6#
      • 1...Se3
        • 2.d4#
      • 1...Sf6
        • 2.Bxd6#
        • 2.Qxd6#
      • 1...Rd3!
    • 1.Qb7?
      • threat
        • 2.Qd5#
      • 1...Rxh5
        • 2.Qe7#
      • 1...Se3
        • 2.d4#
      • 1...Sf6
        • 2.Qe7#
      • 1...Rd3!
    • 1.d4+?
      • 1...Bxd4
        • 2.Qxd4#
      • 1...Ke4!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qd5#
      • 1...Rxh5
        • 2.Qe6#
      • 1...Rd3
        • 2.Sxd3#
      • 1...Se3
        • 2.Sd3#
      • 1...Sf6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(h);N_GUARD,XS(G)::QAB1(H),XQ(g)
    • B(a);N_GUARD,P_PINP(C)::QAB1(H),XB(a)
    • B(a);N_GUARD::QAR2(H),XB(a)
    • S(c);S_CUTB(a)::QAB1(H)
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAR2(H),XB(a)
      • Refutation
        • P(f);XQ(H)
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Vars
        • R(h);N_GUARD,XS(G)::QAB1(H),XQ(g)
        • S(c);S_CUTB(a)::P(B)
      • Refutation
        • R(b);
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Vars
        • R(h);N_GUARD,XS(G)::QAR2(H)
        • S(c);S_CUTB(a)::P(B)
        • S(c);S_CUTR(h)::QAR2(H)
      • Refutation
        • R(b);
    • Try
      • P(B);CHECK
      • Vars
        • B(a);OGATE,P_PINP(C),XP(B)::QAB1(H),XB(a)
      • Refutation
        • K(d);N_SPINQ(g),P-FLIGHT
  • Actual
    • Q(H);
    • Threat
      • QAR1(H)
    • Vars
      • R(h);N_GUARD,XS(G)::QAR1(H)
      • R(b);N_GUARD::S(E),XR(b)
      • S(c);S_CUTR(b)::S(E)
      • S(c);S_CUTR(h)::QAR1(H)
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