MESON Chess Problem Database

Problem Display
PID: 244201 (Q2R1N1K/1rP1p2B/4N3/1p2k1Pp/7r/B1npP3/3n1Rp1/5q2 w - - 0 1)

Bruch, Wieland

Schach, 1992

Q2R1N1K/1rP1p2B/4N3/1p2k1Pp/7r/B1npP3/3n1Rp1/5q2

#2

11 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.exd4#
    • 1...Rf4
      • 2.exf4#
    • 1...Rb8
      • 2.cxb8Q#
      • 2.cxb8B#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Sd7#
      • 1...Rxf4
        • 2.exf4#
      • 1...Rxc7
        • 2.S4g6#
      • 1...b4!
    • 1.Sc5?
      • threat
        • 2.Sg6#
      • 1...Qxf2
        • 2.Sxd3#
      • 1...Rf4
        • 2.exf4#
      • 1...Rb6
        • 2.Scd7#
      • 1...Sf3!
    • 1.Sg6+?
      • 1...Kxe6
        • 2.Bg8#
        • 2.Qc8#
      • 1...Ke4!
    • 1.Sd7+?
      • 1...Kxe6
        • 2.Bg8#
      • 1...Kd5!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Sc6#
      • 1...Rxd4
        • 2.exd4#
      • 1...Rxc7
        • 2.Sg6#
      • 1...Rb6
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(f);OGATE::P(C),XR(f)
    • R(j);OGATE::PXR(j)=Q
  • Tries
    • Try
      • S(E);
      • Threat
        • S(J)
      • Vars
        • R(f);OGATE,XS(E)::P(C),XR(f)
        • R(j);XP(F)::S(E)
      • Refutation
        • P(g);
    • Try
      • S(E);
      • Threat
        • S(J)
      • Vars
        • Q(a);N_GUARD,XR(A)::S(E),XP(e)
        • R(f);OGATE::P(C),XR(f)
        • R(j);::S(E)
      • Refutation
        • S(b);
    • Try
      • S(J);CHECK
      • Refutation
        • K(h);P-FLIGHT,P_SPINR(j)
    • Try
      • S(J);CHECK
      • Vars
        • K(h);P-FLIGHT,XS(E)::B(G)
      • Refutation
        • K(h);P-FLIGHT,P_SPINR(j)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • R(f);OGATE,XS(E)::P(C),XR(f)
      • R(j);XP(F)::S(J)
      • R(j);::S(J)
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