MESON Chess Problem Database

Problem Display
PID: 70302 (6Q1/8/3p4/3R4/4kqp1/4bR1N/K2nppp1/B2B1N2 w - - 0 1)

Gebura, Stanislaw

Segers, Marcel

3rd HM., Het Belgisch Schaakbord (L'Echiquier Belge), 1990-1991

6Q1/8/3p4/3R4/4kqp1/4bR1N/K2nppp1/B2B1N2

#2

8 + 9

5110 Bekroonde Problemen 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Rxe3#
    • 1...Qxf3
      • 2.Bc2#
      • 2.Qe6#
    • 1...Qf5
      • 2.Rxe3#
    • 1...Qf6
      • 2.Rxe3#
    • 1...Qf8
      • 2.Rxe3#
    • 1...Bc5
      • 2.Rxf4#
    • 1...Bb6
      • 2.Rxf4#
    • 1...Ba7
      • 2.Rxf4#
    • 1...Sxf3
      • 2.Bc2#
    • 1...gxf3
      • 2.Bc2#
  • Tries
    • 1.Qe6+?
      • 1...Qe5
        • 2.Rxe3#
      • 1...Kxf3!
  • Keys
    • 1.Rf5!
      • threat
        • 2.Qd5#
      • 1...Kd3
        • 2.Sxf2#
      • 1...Kxf3
        • 2.Sg5#
      • 1...Kxf5
        • 2.Sg3#
      • 1...Qxf5
        • 2.Rxe3#
      • 1...Qe5
        • 2.Bc2#
      • 1...d5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 8
  • Sets
    • Q(g);N_GUARD::R1(E),XB(e)
    • B(e);N_GUARD::R1(E),XQ(g)
    • S(a);SBLOCK,XR(E)::B(B)
    • P(h);SBLOCK,XR(E)::B(B)
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • Q(g);P_SPINQ(g)::R1(E),XB(e)
      • Refutation
        • K(f);P_SPINP(b),S_FLIGHT,XR(E)
  • Actual
    • R(G);
    • Threat
      • QAB1(H)
    • Vars
      • K(f);P_SPINB(e),S_FLIGHT::S(F),XP(c)
      • K(f);P_SPINP(b),P_SPINQ(g),S_FLIGHT,XR(E)::S(F)
      • K(f);P_SPINQ(g),S_FLIGHT,XR(G)::S(C)
      • Q(g);N_GUARD,SBLOCK,XR(G)::R1(E),XB(e)
      • Q(g);::B(B)
      • P(i);::QAB1(H),XP(i)
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