MESON Chess Problem Database

Problem Display
PID: 266731 (8/2N5/4B1p1/r1ppp3/Nr1Pkp1Q/1n2b3/q1nPPR2/1b4BK w - - 0 1)

Maleika, Gerhard

The Problemist, 1998

8/2N5/4B1p1/r1ppp3/Nr1Pkp1Q/1n2b3/q1nPPR2/1b4BK

#2

10 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Sc3#
    • 1...Scxd4
      • 2.Sc3#
    • 1...Sbxd4
      • 2.Sc3#
      • 2.d3#
    • 1...cxd4
      • 2.d3#
  • Tries
    • 1.Rxf4+?
      • 1...Bxf4
        • 2.Sc3#
        • 2.d3#
      • 1...exf4!
    • 1.Qg5?
      • threat
        • 2.Qxe5#
      • 1...Rxd4
        • 2.Sc3#
        • 2.Qxg6#
      • 1...Bxd4
        • 2.Bxd5#
        • 2.Qxg6#
      • 1...Scxd4
        • 2.Sc3#
        • 2.Bxd5#
      • 1...Sbxd4
        • 2.Sc3#
        • 2.d3#
      • 1...cxd4
        • 2.Qxg6#
        • 2.d3#
      • 1...exd4
        • 2.Bxd5#
        • 2.Qxd5#
        • 2.d3#
      • 1...Kxd4!
    • 1.Qh8?
      • threat
        • 2.Qxe5#
      • 1...Kxd4
        • 2.Rxf4#
      • 1...Rxd4
        • 2.Sc3#
      • 1...Scxd4
        • 2.Sc3#
      • 1...Sbxd4
        • 2.Sc3#
        • 2.d3#
      • 1...cxd4
        • 2.d3#
      • 1...exd4
        • 2.d3#
      • 1...Bxd4!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qxe5#
      • 1...Kxd4
        • 2.Rxf4#
      • 1...Rxd4
        • 2.Sc3#
        • 2.Qxg6#
      • 1...Bxd4
        • 2.Bxd5#
        • 2.Qxg6#
      • 1...Scxd4
        • 2.Sc3#
        • 2.Bxd5#
      • 1...Sbxd4
        • 2.Sc3#
        • 2.d3#
      • 1...cxd4
        • 2.Qxg6#
        • 2.d3#
      • 1...exd4
        • 2.Bxd5#
        • 2.d3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(f);SBLOCK,XP(G)::S(F)
    • S(c);SBLOCK,XP(G)::S(F)
    • P(j);SBLOCK,XP(G)::P(C)
  • Tries
    • Try
      • R(E);CHECK,XP(h)
      • Refutation
        • P(l);P_SPINP(l),XR(E)
    • Try
      • Q(H);N_PINP(h)
      • Threat
        • QAR1(H),XP(l)
      • Refutation
        • K(g);P-FLIGHT,XP(G)
    • Try
      • Q(H);N_PINP(h)
      • Threat
        • QAR1(H),XP(l)
      • Vars
        • K(g);N_GUARD,P-FLIGHT,P_SPINP(l),S_CUTB(e),XP(G)::R(E),XP(h)
        • R(f);SBLOCK,XP(G)::S(F)
        • S(c);SBLOCK,XP(G)::S(F)
        • P(j);SBLOCK,XP(G)::P(C)
        • P(l);XP(G)::P(C)
      • Refutation
        • B(e);XP(G)
  • Actual
    • Q(H);N_PINP(h)
    • Threat
      • QAR1(H),XP(l)
    • Vars
      • K(g);P-FLIGHT,P_SPINP(l),S_CUTB(e),XP(G)::R(E),XP(h)
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