MESON Chess Problem Database

Problem Display
PID: 242658 (K7/5N2/p3BP2/r3PnpN/r1p1kb2/2R1P1Q1/1BP1R1Pp/5q2 w - - 0 1)

Gockel, Hubert

Rochade Europa, 2008

K7/5N2/p3BP2/r3PnpN/r1p1kb2/2R1P1Q1/1BP1R1Pp/5q2

#2

13 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg2
      • 2.Qxg2#
    • 1...Qa1
      • 2.Qf3#
    • 1...Qb1
      • 2.Qf3#
    • 1...Qc1
      • 2.Qf3#
    • 1...Qd1
      • 2.Qf3#
    • 1...Qe1
      • 2.Qf3#
    • 1...Qg1
      • 2.Qf3#
    • 1...Qh1
      • 2.Qf3#
    • 1...Qf3
      • 2.Qxf3#
      • 2.gxf3#
    • 1...Bxe5
      • 2.Sxg5#
  • Tries
    • 1.exf4+?
      • 1...Kd4
        • 2.Rxc4#
      • 1...Se3
        • 2.Rcxe3#
        • 2.Qxe3#
      • 1...Qxe2!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qxf5#
      • 1...Qxg2
        • 2.Qxg2#
      • 1...Rxe5
        • 2.Sxg5#
      • 1...Sxe3
        • 2.Rcxe3#
      • 1...Sg3
        • 2.Sxg3#
      • 1...Sd4
        • 2.Sg3#
      • 1...Sh4
        • 2.Sg3#
      • 1...Sd6
        • 2.Sg3#
      • 1...Sh6
        • 2.Sg3#
      • 1...Se7
        • 2.Sg3#
      • 1...Sg7
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 8
  • Sets
    • Q(a);OGATE,XP(D)::QAB(G),XQ(a)
    • Q(a);N_GUARD::QAB1(G)
    • B(f);N_GUARD,XP(H)::S(L),XP(i)
  • Tries
    • Try
      • P(F);CHECK,XB(f)
      • Vars
        • K(e);P-FLIGHT::B(A)+R(E),DCHECK,XP(d)
      • Refutation
        • Q(a);XR(C)
  • Actual
    • Q(G);P_PINB(f)
    • Threat
      • QAB1(G),XS(h)
    • Vars
      • Q(a);OGATE,XP(D)::QAB(G),XQ(a)
      • R(g);SBLOCK,XP(H)::S(L),XP(i)
      • S(h);OGATE,P_SPINS(h),XP(F)::R1(E),XS(h)
      • S(h);N_GUARD::S(I),XS(h)
      • S(h);N_GUARD::S(I)
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