MESON Chess Problem Database

Problem Display
PID: 97371 (3n4/R2Q4/2p1rN1B/2P1kr1b/1p5N/b7/B2pP3/1K1R4 w - - 0 1)

Amirov, Talip Khasanovich

Problemas, 1975

3n4/R2Q4/2p1rN1B/2P1kr1b/1p5N/b7/B2pP3/1K1R4

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf6
      • 2.Qg7#
    • 1...Rd6
      • 2.Qxd6#
    • 1...Re7
      • 2.Qd6#
    • 1...Re8
      • 2.Qd6#
  • Tries
    • 1.Sg6+?
      • 1...Kxf6
        • 2.Qg7#
      • 1...Bxg6!
    • 1.Sg4+?
      • 1...Ke4
        • 2.Qd3#
      • 1...Bxg4!
    • 1.Qxe6+?
      • 1...Kd4
        • 2.Qe3#
      • 1...Sxe6!
    • 1.Qd3?
      • threat
        • 2.Sd7#
      • 1...Kxf6
        • 2.Qxf5#
      • 1...Rfxf6
        • 2.Qe3#
      • 1...Rexf6
        • 2.Qe3#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Re7
        • 2.Qd6#
      • 1...Be8
        • 2.Sg4#
      • 1...Rg5!
    • 1.Qd5+?
      • 1...Kxf6
        • 2.Qxf5#
      • 1...cxd5!
    • 1.Qc7+?
      • 1...Kxf6
        • 2.Qg7#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Kd4!
  • Keys
    • 1.Qxd2!
      • threat
        • 2.Qd4#
      • 1...Kxf6
        • 2.Bg7#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Bb2
        • 2.Qxb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(d);OGATEB,S_FLIGHT,XS(G)::QAB1(J)
    • R(h);N_GUARD::QAB1(J),XR(h)
    • R(h);N_GUARD::QAB1(J)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(d);S_FLIGHT,XS(G)::QAB1(J)
      • Refutation
        • B(f);XS(E)
    • Try
      • S(G);CHECK
      • Vars
        • K(d);P-FLIGHT::QAB1(J)
      • Refutation
        • B(f);XS(G)
    • Try
      • Q(J);CHECK,XR(h)
      • Vars
        • K(d);OGATE,P_SPINP(a),S_FLIGHT::QAB1(J)
      • Refutation
        • S(i);XQ(J)
    • Try
      • Q(J);
      • Threat
        • S(G)
      • Vars
        • K(d);S_FLIGHT,XS(G)::QAR1(J),XR(e)
        • R(e);SBLOCK,XS(G)::QAR2(J)
        • R(h);SBLOCK,XS(G)::QAR2(J)
        • R(h);N_GUARD::QAB1(J),XR(h)
        • R(h);N_GUARD::QAB1(J)
        • B(f);N_GUARD::S(G)
      • Refutation
        • R(e);
    • Try
      • Q(J);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT,XS(G)::QAR1(J),XR(e)
      • Refutation
        • P(g);XQ(J)
    • Try
      • Q(J);CHECK
      • Vars
        • K(d);OGATEB,S_FLIGHT,XS(G)::QAB1(J)
        • R(h);N_GUARD,P_SPINR(h)::QAB1(J),XR(h)
      • Refutation
        • K(d);P_SPINP(a),S_FLIGHT
  • Actual
    • Q(J);XP(a)
    • Threat
      • QAB1(J)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(G)::B(H)
      • R(e);N_GUARD::QAB1(J),XR(e)
      • R(h);N_GUARD::QAB1(J),XR(h)
      • B(b);N_GUARD::QAB(J),XB(b)
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