MESON Chess Problem Database

Problem Display
PID: 233790 (4Q2K/8/5p2/R2p3p/3k1p2/1Pp3P1/2P1pN2/q3B3 w - - 0 1)

Schneider, Michael

Freie Presse, 1969

4Q2K/8/5p2/R2p3p/3k1p2/1Pp3P1/2P1pN2/q3B3

#2

8 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sd1?
      • threat
        • 2.Bf2#
      • 1...fxg3
        • 2.Qe3#
      • 1...Qc1
        • 2.Bxc3#
      • 1...exd1S!
    • 1.Sd3?
      • threat
        • 2.Bf2#
      • 1...Qxe1
        • 2.Ra4#
      • 1...Qc1
        • 2.Ra4#
      • 1...fxg3!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Bf2#
      • 1...Qxe1
        • 2.Qa4#
      • 1...fxg3
        • 2.Qe3#
      • 1...Qc1
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • B(A)
      • Vars
        • P(e);N_GUARD,XP(E)::QAB1(G)
        • Q(a);N_GUARD::B(A),XP(c)
      • Refutation
        • P(b);XS(C)
    • Try
      • S(C);
      • Threat
        • B(A)
      • Vars
        • Q(a);N_GUARD,XB(A)::R(F)
        • Q(a);N_GUARD::R(F)
      • Refutation
        • P(e);XP(E)
  • Actual
    • S(C);
    • Threat
      • B(A)
    • Vars
      • Q(a);N_GUARD,XB(A)::QAR(G)
      • P(e);N_GUARD,XP(E)::QAB1(G)
      • Q(a);N_GUARD::QAR(G)
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