MESON Chess Problem Database

Problem Display
PID: 108822 (3bNnr1/4p3/7Q/1N2k2b/4P3/3K1p2/B4P1r/8 w - - 0 1)

le Gouadec, G

Bulletin de la FFE, 1936

3bNnr1/4p3/7Q/1N2k2b/4P3/3K1p2/B4P1r/8

#2

7 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg5
      • 2.Qxg5#
    • 1...Rh8
      • 2.Qg5#
    • 1...Bg4
      • 2.Qxh2#
    • 1...Bg6
      • 2.Qxh2#
    • 1...Sg6
      • 2.Qg5#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Sc6#
      • 1...Bxe8
        • 2.Sxf3#
      • 1...Rg5
        • 2.Qxg5#
      • 1...Rg6!
    • 1.Qxh5+?
      • 1...Kf4
        • 2.Qf5#
      • 1...Rg5
        • 2.Qxg5#
      • 1...Rxh5!
    • 1.Qe6+?
      • 1...Kf4
        • 2.Qf5#
      • 1...Sxe6!
  • Keys
    • 1.Sbd6!
      • threat
        • 2.Sc4#
      • 1...exd6
        • 2.Qxd6#
      • 1...Rg5
        • 2.Qxg5#
      • 1...Rg6
        • 2.Sf7#
      • 1...Bg6
        • 2.Qxh2#
      • 1...Bf7
        • 2.Sxf7#
      • 1...Sg6
        • 2.Sf7#
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(h);N_GUARD::QAR2(F),XR(h)
    • R(h);N_GUARD::QAR2(F)
    • B(d);OGATE::QAB(F),XR(a)
    • B(d);OGATE,P_PINP(D)::QAB(F),XR(a)
    • S(g);S_CUTR(h)::QAR2(F)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • B(d);N_GUARD,XS(G)::S(E),XP(b)
        • R(h);N_GUARD::QAR2(F),XR(h)
      • Refutation
        • R(h);
    • Try
      • Q(F);CHECK,XB(d)
      • Vars
        • K(c);S_FLIGHT::QAR1(F)
        • R(h);N_GUARD,P_SPINR(h)::QAR2(F),XR(h)
      • Refutation
        • R(a);XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR1(F)
      • Refutation
        • S(g);XQ(F)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • P(e);OGATE,XS(E)::QAB1(F),XP(e)
      • R(h);N_GUARD::QAR2(F),XR(h)
      • R(h);S_CUTB(d)::S(E)
      • B(d);OGATE,P_PINP(D)::QAB(F),XR(a)
      • B(d);N_GUARD::S(E),XB(d)
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