MESON Chess Problem Database

Problem Display
PID: 243064 (3b4/4p1R1/1pK5/2p1Np1p/4Bk2/2R2N1P/Q7/5n2 w - - 0 1)

Amirov, Talip Khasanovich

Arbejder-Skak, 1961

3b4/4p1R1/1pK5/2p1Np1p/4Bk2/2R2N1P/Q7/5n2

#2

8 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Qc4#
    • 1...fxe4
      • 2.Qf7#
  • Tries
    • 1.Sg6+?
      • 1...Kxe4
        • 2.Qb1#
        • 2.Qc4#
        • 2.Qd5#
        • 2.Qe6#
        • 2.Qc2#
      • 1...Kg3!
    • 1.Bb1?
      • threat
        • 2.Qc4#
      • 1...Sd2
        • 2.Qxd2#
      • 1...Se3
        • 2.Qh2#
      • 1...Sg3
        • 2.Sg6#
        • 2.Qd2#
      • 1...c4
        • 2.Qxc4#
      • 1...b5!
    • 1.Bd5?
      • threat
        • 2.Qc4#
      • 1...Sd2
        • 2.Qxd2#
      • 1...Se3
        • 2.Sd3#
        • 2.Qh2#
      • 1...Sg3
        • 2.Sg6#
        • 2.Qd2#
      • 1...c4
        • 2.Qxc4#
      • 1...b5!
    • 1.Qd2+?
      • 1...Kxe4
        • 2.Rc4#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sxd2!
    • 1.Qf2?
      • threat
        • 2.Qh4#
      • 1...Kxe4
        • 2.Rc4#
      • 1...fxe4
        • 2.Rf7#
      • 1...Sh2
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sg3
        • 2.Qe3#
      • 1...h4
        • 2.Qxh4#
      • 1...e6!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qxf5#
      • 1...Kxe4
        • 2.Sg6#
        • 2.Qc4#
      • 1...fxe4
        • 2.Qf7#
      • 1...Se3
        • 2.Sd3#
      • 1...Sg3
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(b);OGATEB,P-FLIGHT,XB(E)::QAR2(A)
    • P(d);OGATEB,SBLOCK,XB(E)::QAR(A)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(E);
      • Threat
        • QAR(A)
      • Vars
        • S(a);N_GUARD::QAB(A),XS(a)
        • S(a);N_GUARD::QAB(A)
        • P(c);::QAR(A),XP(c)
      • Refutation
        • P(f);
    • Try
      • B(E);
      • Threat
        • QAR(A)
      • Vars
        • S(a);N_GUARD::QAB(A),XS(a)
        • P(c);::QAR(A),XP(c)
      • Refutation
        • P(f);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT,XB(E)::R(B)
        • S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • K(b);OGATEB,P-FLIGHT,XB(E)::R(B)
        • P(d);OGATEB,SBLOCK,XB(E)::R(H)
        • S(a);N_GUARD::QAB1(A)
        • S(a);N_GUARD::QAB1(A),XS(a)
        • P(e);::QAR2(A),XP(e)
      • Refutation
        • P(g);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XP(d)
    • Vars
      • P(d);OGATEB,SBLOCK,XB(E)::QAR(A)
      • S(a);SBLOCK::S(F)
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