MESON Chess Problem Database

Problem Display
PID: 233793 (5B2/1K1pr3/2pk4/4n1N1/bP6/4N3/2p2P1Q/8 w - - 0 1)

Schneider, Michael

Freie Presse, 1971

5B2/1K1pr3/2pk4/4n1N1/bP6/4N3/2p2P1Q/8

#2

7 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qf4?
      • threat
        • 2.Qd4#
        • 2.Qf6#
      • 1...c5
        • 2.Qf6#
      • 1...Bb3!
    • 1.Qh1?
      • threat
        • 2.Sf5#
      • 1...Sd3
        • 2.Sc4#
      • 1...Sc4
        • 2.Sxc4#
      • 1...Sg4
        • 2.Sc4#
      • 1...Sg6
        • 2.Sc4#
      • 1...Sf7
        • 2.Sc4#
      • 1...Sf3!
    • 1.Qg2?
      • threat
        • 2.Sf5#
      • 1...Sd3
        • 2.Sc4#
      • 1...Sc4
        • 2.Sxc4#
      • 1...Sg4
        • 2.Sc4#
      • 1...Sg6
        • 2.Sc4#
      • 1...Sf7
        • 2.Sc4#
      • 1...Sf3!
    • 1.Qh3?
      • threat
        • 2.Se4#
      • 1...Sd3
        • 2.Sf7#
      • 1...Sf3
        • 2.Sf7#
      • 1...Sc4
        • 2.Sf7#
      • 1...Sg6
        • 2.Sf7#
      • 1...Sf7
        • 2.Sxf7#
      • 1...Sg4!
    • 1.Qh8?
      • threat
        • 2.Qf6#
      • 1...Sg4
        • 2.Qd4#
      • 1...Bb3!
  • Keys
    • 1.f4!
      • threat
        • 2.fxe5#
      • 1...Sd3
        • 2.Qh6#
      • 1...Sf3
        • 2.Qh6#
      • 1...Sc4
        • 2.Qh6#
      • 1...Sg4
        • 2.Qd2#
      • 1...Sg6
        • 2.Qd2#
      • 1...Sf7
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);::QAR2(B)
      • Refutation
        • B(b);
    • Try
      • Q(B);N_PINS(c)
      • Threat
        • S(C)
      • Vars
        • S(c);N_GUARD::S(C)
        • S(c);N_GUARD::S(C),XS(c)
      • Refutation
        • S(c);
    • Try
      • Q(B);N_PINS(c)
      • Threat
        • S(C)
      • Vars
        • S(c);N_GUARD::S(C)
        • S(c);N_GUARD::S(C),XS(c)
      • Refutation
        • S(c);
    • Try
      • Q(B);N_PINS(c)
      • Threat
        • S(E)
      • Vars
        • S(c);N_GUARD::S(E)
        • S(c);N_GUARD::S(E),XS(c)
      • Refutation
        • S(c);
    • Try
      • Q(B);N_PINS(c)
      • Threat
        • QAR2(B)
      • Vars
        • S(c);OGATE::QAR2(B)
      • Refutation
        • B(b);
  • Actual
    • P(A);N_PINS(c)
    • Threat
      • P(A),XS(c)
    • Vars
      • S(c);N_GUARD::QAR(B)
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