MESON Chess Problem Database

Problem Display
PID: 158039 (2r2qB1/8/7N/r2ppp2/2p1k1p1/2Pp2P1/1P2N1K1/5QB1 w - - 0 1)

Amirov, Talip Khasanovich

Sovietsky Sport, 1973

2r2qB1/8/7N/r2ppp2/2p1k1p1/2Pp2P1/1P2N1K1/5QB1

#2

9 + 10

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Qa3
      • 2.Qxf5#
    • 1...Qb4
      • 2.Qxf5#
    • 1...Qc5
      • 2.Qxf5#
    • 1...Qd6
      • 2.Qxf5#
    • 1...Qe7
      • 2.Qxf5#
    • 1...Qg7
      • 2.Qxf5#
    • 1...Qd8
      • 2.Qxf5#
    • 1...Qe8
      • 2.Qxf5#
    • 1...Qxg8
      • 2.Qxf5#
    • 1...dxe2
      • 2.Qxe2#
      • 2.Qb1#
    • 1...d2
      • 2.Qb1#
  • Tries
    • 1.Sc1?
      • threat
        • 2.Qe1#
      • 1...Qc5
        • 2.Qxf5#
      • 1...d2
        • 2.Qe2#
      • 1...Qxh6!
    • 1.Sd4?
      • threat
        • 2.Qe1#
      • 1...Qxh6
        • 2.Qxf5#
      • 1...d2
        • 2.Qe2#
        • 2.Qb1#
      • 1...Ra1!
    • 1.Sf4?
      • threat
        • 2.Qe1#
      • 1...Ra1
        • 2.Bxd5#
      • 1...d2
        • 2.Qe2#
        • 2.Qb1#
      • 1...Qc5!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Sc1#
        • 2.Sd4#
        • 2.Sf4#
      • 1...Qxh6
        • 2.Sf4#
      • 1...dxe2
        • 2.Qb1#
        • 2.Qxe2#
      • 1...d2
        • 2.Qb1#
      • 1...Qc5
        • 2.Sd4#
      • 1...Ra1
        • 2.Sc1#
      • 1...d4
        • 2.Sc1#
        • 2.Sxd4#
        • 2.Sf4#
      • 1...f4
        • 2.Sc1#
        • 2.Sd4#
        • 2.Sxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • Q(j);N_GUARD::QAB1(A),XP(h)
    • Q(j);N_GUARD,XB(I)::QAB1(A),XP(h)
    • P(a);OGATEB::QAB(A)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR(A)
      • Vars
        • Q(j);N_GUARD::QAB1(A),XP(h)
        • P(a);N_GUARD::QAR2(A)
      • Refutation
        • Q(j);XS(H)
    • Try
      • S(D);
      • Threat
        • QAR(A)
      • Vars
        • Q(j);N_GUARD,XS(H)::QAB1(A),XP(h)
      • Refutation
        • R(e);
    • Try
      • S(D);
      • Threat
        • QAR(A)
      • Vars
        • R(e);N_GUARD::B(I),XP(f)
      • Refutation
        • Q(j);
  • Actual
    • Q(A);
    • Threat
      • DUALS(3)
    • Vars
      • Q(j);XS(H)::QAR(A)+S(D)
      • P(a);OGATEB::QAB(A)
      • Q(j);::QAR(A)+S(D)
      • R(e);::QAR(A)+S(D)
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