MESON Chess Problem Database

Problem Display
PID: 10697 (8/1Kp4b/1BQ5/N7/Pk2q2r/1P2p3/1R6/1N6 w - - 0 1)

Zajic, Helmut

9th Place, Landerwettkampf, 1967

8/1Kp4b/1BQ5/N7/Pk2q2r/1P2p3/1R6/1N6

#2

8 + 6

14730 Problempalette II (Chlubna/Wenda) 1991

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb1
      • 2.Qc5#
    • 1...Qc2
      • 2.Qb5#
    • 1...Qd3
      • 2.Qc5#
    • 1...Qf5
      • 2.Qc3#
    • 1...Qxc6+
      • 2.Sxc6#
    • 1...Qg6
      • 2.Qb5#
      • 2.Qc3#
      • 2.Qc5#
    • 1...Qc4
      • 2.bxc4#
    • 1...Qd4
      • 2.Qb5#
    • 1...Qf4
      • 2.Qb5#
      • 2.Qc3#
      • 2.Qc5#
    • 1...Qg4
      • 2.Qb5#
      • 2.Qc3#
      • 2.Qc5#
    • 1...Qe6
      • 2.Qb5#
      • 2.Qc3#
      • 2.Qc5#
    • 1...Qe7
      • 2.Qb5#
      • 2.Qc3#
    • 1...Qe8
      • 2.Qc3#
      • 2.Qc5#
  • Tries
    • 1.Ka7?
      • threat
        • 2.Qb5#
        • 2.Qc3#
        • 2.Qc5#
      • 1...Qxb1
        • 2.Qc5#
      • 1...Qxc6
        • 2.Sxc6#
      • 1...cxb6
        • 2.Qb5#
        • 2.Qc3#
        • 2.Qxb6#
      • 1...Qc2
        • 2.Qb5#
      • 1...Qd3
        • 2.Qc5#
      • 1...Qd5
        • 2.Qc3#
      • 1...Qf5
        • 2.Qc3#
      • 1...Qc4
        • 2.bxc4#
      • 1...Qd4
        • 2.Qb5#
      • 1...Qe7
        • 2.Qb5#
        • 2.Qc3#
      • 1...Qe8
        • 2.Qc3#
        • 2.Qc5#
      • 1...Rh5
        • 2.Qc3#
      • 1...Qe5!
    • 1.Qxe4+?
      • 1...Rxe4
        • 2.Sc6#
      • 1...Bxe4+!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Bc3#
      • 1...Qxc6+
        • 2.Sxc6#
      • 1...Kxa5
        • 2.b4#
      • 1...Qxb1
        • 2.Qc5#
      • 1...Qxd4
        • 2.Qb5#
      • 1...Qe5
        • 2.Qc3#
      • 1...Qc2
        • 2.Qb5#
      • 1...Qd3
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(c);N_PINQ(G),XS(A)::QAB1(G)
    • Q(c);N_PINQ(G)::QAR1(G)
    • Q(c);N_PINQ(G)::QAB1(G)
    • Q(c);CHECK,XQ(G)::S(E),XQ(c)
    • Q(c);N_PINQ(G),OGATE::R(B)+P(C),XQ(c)
  • Tries
    • Try
      • K(H);N_SPINQ(G),P-FLIGHT
      • Threat
        • DUALS(3)
      • Vars
        • Q(c);XS(A)::QAB1(G)
        • Q(c);XQ(G)::S(E),XQ(c)
        • Q(c);::QAR1(G)
        • Q(c);::QAB1(G)
        • Q(c);OGATE::R(B)+P(C),XQ(c)
        • Q(c);P_PINB(F)::QAR1(G)
        • R(d);::QAB1(G)
      • Refutation
        • Q(c);
    • Try
      • Q(G);CHECK,N_SPINQ(G),XQ(c)
      • Vars
        • R(d);XQ(G)::S(E)
      • Refutation
        • B(f);CHECK,XQ(G)
  • Actual
    • B(F);
    • Threat
      • B(F)
    • Vars
      • Q(c);CHECK,XQ(G)::S(E),XQ(c)
      • K(b);OGATE,S_FLIGHT,XS(E)::P(C)
      • Q(c);N_PINQ(G),XS(A)::QAB1(G)
      • Q(c);N_PINQ(G),XB(F)::QAR1(G)
      • Q(c);N_PINQ(G)::QAB1(G)
      • Q(c);N_PINQ(G)::QAR1(G)
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