MESON Chess Problem Database

Problem Display
PID: 158038 (Kn1Q4/1R3p2/2pP4/p7/N1k2N2/2rR4/p1n1P3/q7 w - - 0 1)

Amirov, Talip Khasanovich

Sachove umeni (Ceskoslovensky sach), 1973

Kn1Q4/1R3p2/2pP4/p7/N1k2N2/2rR4/p1n1P3/q7

#2

8 + 9

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Qg8#
    • 1...f6
      • 2.Qg8#
  • Tries
    • 1.Sb2+?
      • 1...Kc5
        • 2.Qxa5#
        • 2.Qb6#
      • 1...Qxb2!
    • 1.Qb6?
      • threat
        • 2.Qc5#
      • 1...Qg1
        • 2.Sb2#
        • 2.Rxc3#
      • 1...Sa6
        • 2.Qxa6#
      • 1...Sd7
        • 2.Qa6#
      • 1...c5
        • 2.Qxc5#
        • 2.Qb5#
      • 1...Sb4!
    • 1.Qf6?
      • threat
        • 2.Qxf7#
      • 1...Rxd3
        • 2.exd3#
      • 1...Qh1
        • 2.Rxc3#
        • 2.Qxc3#
      • 1...Se3
        • 2.Rd4#
        • 2.Qd4#
      • 1...Sd4
        • 2.Rxd4#
        • 2.Qxd4#
      • 1...Sb4!
  • Keys
    • 1.Qxa5!
      • threat
        • 2.Qc5#
      • 1...Sb4
        • 2.Rxb4#
        • 2.Qxb4#
      • 1...Qg1
        • 2.Sb2#
        • 2.Qxc3#
      • 1...Sa6
        • 2.Qxa6#
      • 1...Sd7
        • 2.Qa6#
      • 1...c5
        • 2.Qb5#
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • P(h);OGATEB::QAB(H)
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • Q(a);XS(C)
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Vars
        • S(i);N_GUARD::QAB(H),XS(i)
        • S(i);N_GUARD::QAB(H)
      • Refutation
        • S(c);
    • Try
      • Q(H);
      • Threat
        • QAB(H),XP(h)
      • Vars
        • R(d);OGATE,XR(B)::P(A),XR(d)
      • Refutation
        • S(c);
  • Actual
    • Q(H);XP(f)
    • Threat
      • QAR1(H)
    • Vars
      • S(i);N_GUARD::QAB(H),XS(i)
      • S(i);N_GUARD::QAB(H)
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