MESON Chess Problem Database

Problem Display
PID: 187235 (q1b3BB/3P2R1/p6Q/Pn2n2R/K1Pk2P1/2p1p1r1/6N1/4N3 w - - 0 1)

Anonymous

12. Kwik-Toernooi, 1979

q1b3BB/3P2R1/p6Q/Pn2n2R/K1Pk2P1/2p1p1r1/6N1/4N3

#2

12 + 9

102 Probleemblad 1979

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qf4#
    • 1...Kc5
      • 2.Qb6#
    • 1...Qe4
      • 2.Qb6#
    • 1...Rxg4
      • 2.Qxe3#
    • 1...Sf3
      • 2.Qxe3#
    • 1...Sxg4
      • 2.Rxg4#
    • 1...Sc6
      • 2.Qf4#
  • Tries
    • 1.Qd6+?
      • 1...Ke4
        • 2.Rxe5#
        • 2.Qxe5#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Sxd6!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qxe5#
      • 1...Ke4
        • 2.Qxe5#
      • 1...Kc5
        • 2.Qb6#
      • 1...Sxc4
        • 2.Qxc4#
      • 1...Sxg4
        • 2.Rxg4#
      • 1...Sxd7
        • 2.Rxd7#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Qe4
        • 2.Qb6#
      • 1...Qb8
        • 2.Qd5#
      • 1...Sd3
        • 2.Sc2#
      • 1...Sf3
        • 2.Qxe3#
      • 1...Sc6
        • 2.Qd5#
      • 1...Sg6
        • 2.Rxg6#
      • 1...Sf7
        • 2.Rxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • K(d);P-FLIGHT::QAR1(H)
    • K(d);P_SPINS(f),S_FLIGHT::QAB1(H)
    • Q(h);SBLOCK::QAB(H)
    • R(c);N_GUARD,XP(E)::QAB1(H),XP(b)
    • S(f);S_CUTR(c)::QAB1(H),XP(b)
    • S(f);OGATE,XP(E)::B(L)+R(J),DCHECK,XS(f)
    • S(f);S_CUTQ(h)::QAR2(H)
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • Q(h);N_GUARD,P_SPINQ(h)::QAR1(H),XQ(h)
      • Refutation
        • S(e);XQ(H)
  • Actual
    • Q(H);
    • Threat
      • QAB1(H),XS(f)
    • Vars
      • K(d);P-FLIGHT,P_SPINS(f)::QAR1(H),XS(f)
      • K(d);P_SPINS(f),S_FLIGHT::QAB1(H)
      • S(f);OGATE,XP(D)::QAR1(H),XS(f)
      • S(f);OGATE,XP(E)::B(L)+R(J),DCHECK,XS(f)
      • S(f);OGATE,XP(I)::B(L)+R(J),DCHECK,XS(f)
      • Q(h);N_GUARD::QAR1(H),XQ(h)
      • Q(h);SBLOCK::QAB(H)
      • Q(h);N_GUARD::QAR1(H)
      • S(f);SBLOCK::S(A)
      • S(f);OGATE::QAB1(H),XP(b)
      • S(f);S_CUTQ(h)::QAR1(H)
      • S(f);OGATEB::B(L)+R(J),XS(f)
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