MESON Chess Problem Database

Problem Display
PID: 119861 (5n1q/1KNB1p2/4p3/3Rn1Q1/pPp1k3/8/r3p1P1/4b3 w - - 0 1)

Hoffmann, Klaus Peter

Deutsche Arbeiter Schachzeitung, 1910

5n1q/1KNB1p2/4p3/3Rn1Q1/pPp1k3/8/r3p1P1/4b3

#2

7 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qh1
      • 2.Qxe5#
    • 1...Qh3
      • 2.Qxe5#
    • 1...Qh4
      • 2.Qxe5#
    • 1...Qh6
      • 2.Qxe5#
    • 1...Qh7
      • 2.Qxe5#
    • 1...Qg8
      • 2.Qxe5#
  • Tries
    • 1.Qg4+?
      • 1...Ke3
        • 2.Qd4#
      • 1...Sxg4!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Rd4#
      • 1...Kxd5
        • 2.Bc6#
      • 1...Sexd7
        • 2.Sd6#
      • 1...exd5
        • 2.Bf5#
      • 1...Rd2
        • 2.Sc3#
      • 1...Bf2
        • 2.Sc3#
      • 1...Bc3
        • 2.Sxc3#
      • 1...Sd3
        • 2.Sd6#
      • 1...Sf3
        • 2.Sd6#
      • 1...Sg4
        • 2.Sd6#
      • 1...Sc6
        • 2.Sd6#
      • 1...Seg6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 6
  • Sets
    • Q(k);N_GUARD::QAR1(D),XS(g)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(f);OGATE,P-FLIGHT::QAB1(D)
      • Refutation
        • S(g);XQ(D)
  • Actual
    • S(F);
    • Threat
      • R1(C)
    • Vars
      • K(f);OGATEB,P_SPINS(g),S_FLIGHT,XR(C)::B(G)
      • S(g);XB(G)::S(F)
      • P(h);OGATE,SBLOCK,XR(C)::B(G)
      • R(b);S_CUTB(a)::S(F)
      • B(a);N_GUARD::S(F)
      • B(a);N_GUARD::S(F),XB(a)
      • S(g);::S(F)
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