MESON Chess Problem Database

Problem Display
PID: 106046 (8/6pQ/5p2/3p4/3n1k1B/7B/6P1/1Kb1RN1n w - - 0 1)

Amirov, Talip Khasanovich

Northwest Chess, 1977

8/6pQ/5p2/3p4/3n1k1B/7B/6P1/1Kb1RN1n

#2

7 + 7

6490 yacpdb 2009
15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Qf5#
    • 1...Se2
      • 2.Qf5#
    • 1...Sb3
      • 2.Qf5#
    • 1...Sf3
      • 2.Qf5#
    • 1...Sb5
      • 2.Qf5#
    • 1...Sf5
      • 2.Qxf5#
    • 1...Sc6
      • 2.Qf5#
    • 1...Se6
      • 2.Qf5#
    • 1...g5
      • 2.Qc7#
    • 1...g6
      • 2.Qc7#
  • Tries
    • 1.Bg3+?
      • 1...Sxg3
        • 2.Qh4#
      • 1...Kg5!
    • 1.Bxf6?
      • threat
        • 2.Qh4#
      • 1...Sf3
        • 2.Qf5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...g5
        • 2.Be5#
        • 2.Qc7#
      • 1...Sf2!
    • 1.Qg6?
      • threat
        • 2.Qg4#
      • 1...Se2
        • 2.Qf5#
      • 1...Sf2
        • 2.Bg3#
        • 2.Qg3#
      • 1...f5
        • 2.Bg5#
        • 2.Qg5#
        • 2.Qd6#
      • 1...Be3!
    • 1.Qh5?
      • threat
        • 2.Qg4#
      • 1...Se2
        • 2.Qf5#
      • 1...Sf2
        • 2.Bg3#
        • 2.g3#
      • 1...f5
        • 2.Bg5#
        • 2.Qg5#
      • 1...Be3!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Qxd4#
      • 1...Be3
        • 2.Qxe3#
      • 1...Se2
        • 2.Qf5#
      • 1...Bb2
        • 2.Qd2#
        • 2.Qe3#
      • 1...Sf2
        • 2.Qg3#
        • 2.g3#
      • 1...Sg3
        • 2.Qxg3#
      • 1...Sc2
        • 2.Qf5#
        • 2.Qf3#
      • 1...Sb3
        • 2.Qf5#
        • 2.Qf3#
      • 1...Sf3
        • 2.Qf5#
        • 2.Qxf3#
      • 1...Sb5
        • 2.Qf5#
        • 2.Qf3#
      • 1...Sf5
        • 2.Qxf5#
        • 2.Qf3#
      • 1...Sc6
        • 2.Qf5#
        • 2.Qf3#
      • 1...Se6
        • 2.Qf5#
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • S(c);N_GUARD::QAR1(G)
    • S(c);N_GUARD::QAR1(G),XS(c)
    • P(g);OGATE::QAB(G)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • S(b);XB(F)::QAR2(G)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • B(F);XP(f)
      • Threat
        • QAR2(G)
      • Vars
        • S(c);N_GUARD::QAR1(G)
        • S(c);N_GUARD::QAR1(G),XS(c)
      • Refutation
        • S(b);
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • S(c);N_GUARD::QAR1(G)
      • Refutation
        • B(a);
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • S(c);N_GUARD::QAR1(G)
      • Refutation
        • B(a);
  • Actual
    • Q(G);
    • Threat
      • QAR2(G),XS(c)
    • Vars
      • B(a);N_GUARD::QAB1(G),XB(a)
      • S(c);N_GUARD::QAR1(G)
      • S(b);N_GUARD::QAB1(G),XS(b)
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