MESON Chess Problem Database

Problem Display
PID: 56024 (8/1p6/2r1RNq1/Q7/2Pk2n1/5P2/b3P3/NRB1Kn2 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Comm., StrateGems, 2002

8/1p6/2r1RNq1/Q7/2Pk2n1/5P2/b3P3/NRB1Kn2

#2

10 + 7

145 StrateGems 2004
15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Qb4#
    • 1...Qe4
      • 2.Rxe4#
    • 1...Qh5
      • 2.Re4#
    • 1...Qf7
      • 2.Re4#
    • 1...Qg5
      • 2.Re4#
    • 1...Qxf6
      • 2.Re4#
    • 1...Qh6
      • 2.Re4#
    • 1...Qg7
      • 2.Re4#
    • 1...Qg8
      • 2.Re4#
    • 1...Rxc4
      • 2.Rd6#
    • 1...Bxc4
      • 2.Bb2#
  • Tries
    • 1.Sc2+?
      • 1...Kxc4
        • 2.Qb4#
      • 1...Qxc2!
    • 1.Rd6+?
      • 1...Kxc4
        • 2.Qb4#
      • 1...Rxd6!
    • 1.Qc3+?
      • 1...Kc5
        • 2.Sd7#
        • 2.Ba3#
        • 2.Rb5#
      • 1...Kxc3!
  • Keys
    • 1.Se4!
      • threat
        • 2.Qc3#
        • 2.Qd5#
      • 1...Kxc4
        • 2.Rb4#
      • 1...Qxe4
        • 2.Rxe4#
      • 1...Qxe6
        • 2.Qc3#
      • 1...Rxc4
        • 2.Qd8#
      • 1...Bxc4
        • 2.Sc2#
      • 1...Sd2
        • 2.Qc3#
      • 1...Qf5
        • 2.Qc3#
      • 1...Qh5
        • 2.Qc3#
      • 1...Qg5
        • 2.Qc3#
      • 1...Rc5
        • 2.Qc3#
        • 2.Qxc5#
      • 1...Rd6
        • 2.Qc3#
        • 2.Qc5#
      • 1...Sfe3
        • 2.Qc3#
      • 1...Sge3
        • 2.Qc3#
      • 1...Sf6
        • 2.Qc3#
      • 1...b5
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 7
    • REMOVED MATES = 5
  • Sets
    • K(c);OGATEB,P-FLIGHT,XP(G)::QAR1(H)
    • Q(f);N_GUARD,P_PINP(E)::R1(I),XQ(f)
    • Q(f);N_GUARD::R1(I)
    • Q(f);N_GUARD,XS(J)::R1(I)
    • R(e);N_GUARD,SBLOCK,XP(G)::R(I)
    • B(b);SBLOCK,XP(G)::B(C)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(G)::QAR1(H)
      • Refutation
        • Q(f);XS(A)
    • Try
      • R(I);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(G)::QAR1(H)
      • Refutation
        • R(e);XR(I)
    • Try
      • Q(H);CHECK
      • Refutation
        • K(c);S_FLIGHT,XQ(H)
  • Actual
    • S(J);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);OGATEB,P-FLIGHT,XP(G)::R1(B)
      • Q(f);OGATE,P_PINP(E),XS(J)::R1(I),XQ(f)
      • Q(f);XR(I)::QAB1(H)
      • R(e);N_GUARD,SBLOCK,XP(G)::QAR(H)
      • B(b);SBLOCK,XP(G)::S(A)
      • S(a);::QAB1(H)
      • Q(f);::QAB1(H)
      • S(d);::QAB1(H)
      • P(g);::QAB1(H)
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