MESON Chess Problem Database

Problem Display
PID: 195861 (R2NrnK1/bPP1kPRp/1P4p1/2NBrp2/2P4P/4B3/8/8 w - - 0 1)

Maleika, Gerhard

StrateGems, 2018

R2NrnK1/bPP1kPRp/1P4p1/2NBrp2/2P4P/4B3/8/8

#2

13 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.c8S#
    • 1...Kf6
      • 2.Bg5#
    • 1...Rxd8
      • 2.cxd8Q#
    • 1...Se6+
      • 2.f8Q#
    • 1...Sd7+
      • 2.f8Q#
  • Tries
    • 1.Sc6+?
      • 1...Kf6
        • 2.Bg5#
      • 1...Kd6!
    • 1.c8S+?
      • 1...Kf6
        • 2.Bg5#
      • 1...Kxd8!
    • 1.fxe8Q+?
      • 1...Kd6
        • 2.Sf7#
        • 2.Qc6#
        • 2.c8S#
      • 1...Kf6
        • 2.Bg5#
        • 2.Rf7#
        • 2.Qf7#
        • 2.Qxf8#
      • 1...Kxe8!
    • 1.fxe8B+?
      • 1...Kd6
        • 2.c8S#
      • 1...Kf6
        • 2.Bg5#
        • 2.Rf7#
      • 1...Kxe8!
    • 1.fxe8R+?
      • 1...Kd6
        • 2.Sf7#
        • 2.c8S#
      • 1...Kf6
        • 2.Bg5#
        • 2.Rf7#
        • 2.Rxf8#
      • 1...Kxe8!
  • Keys
    • 1.Bc6!
      • threat
        • 2.fxe8S#
      • 1...Se6+
        • 2.f8Q#
      • 1...Sd7+
        • 2.f8Q#
      • 1...Kd6
        • 2.c8S#
      • 1...Kf6
        • 2.Bg5#
      • 1...Rxd8
        • 2.cxd8Q#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT::P=S
    • K(e);S_FLIGHT::B(A)
    • R(g);OGATE,XS(L)::PXR(g)=Q
    • S(h);CHECK,OGATE::P=Q
  • Tries
    • Try
      • S(L);CHECK
      • Vars
        • K(e);S_FLIGHT::B(A)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • P(H);CHECK
      • Vars
        • K(e);S_FLIGHT::B(A)
      • Refutation
        • K(e);S_FLIGHT,XS(L)
    • Try
      • P(I);CHECK,XR(g)
      • Refutation
        • K(e);P-FLIGHT,XQ(I)
    • Try
      • P(I);CHECK,XR(g)
      • Vars
        • K(e);S_FLIGHT::P=S
      • Refutation
        • K(e);P-FLIGHT,XB(I)
    • Try
      • P(I);CHECK,XR(g)
      • Refutation
        • K(e);P-FLIGHT,XR(I)
  • Actual
    • B(E);
    • Threat
      • PXR(g)=S
    • Vars
      • S(h);CHECK,OGATE::P=Q
      • K(e);S_FLIGHT::P=S
      • K(e);S_FLIGHT::B(A)
      • R(g);OGATE,XS(L)::PXR(g)=Q
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