MESON Chess Problem Database

Problem Display
PID: 212657 (2RrR3/QK1P4/nppkB3/2N5/1r1B1P2/5b2/8/8 w - - 0 1)

Reinhofer, Erwin

Badische Neueste Nachrichten, 1983

2RrR3/QK1P4/nppkB3/2N5/1r1B1P2/5b2/8/8

#2

9 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc8
      • 2.dxc8S#
    • 1...Bd1
      • 2.Se4#
      • 2.Rxc6#
    • 1...Be2
      • 2.Se4#
      • 2.Rxc6#
    • 1...Be4
      • 2.Sxe4#
    • 1...Bg4
      • 2.Se4#
      • 2.Rxc6#
    • 1...Bh5
      • 2.Se4#
      • 2.Rxc6#
    • 1...Sb8
      • 2.Qxb8#
    • 1...b5
      • 2.Be5#
  • Tries
    • 1.Qb8+?
      • 1...Sc7
        • 2.Qxc7#
      • 1...Sxb8!
  • Keys
    • 1.Ka8!
      • threat
        • 2.Sb7#
      • 1...Rxc8+
        • 2.dxc8S#
      • 1...Sc7+
        • 2.Qxc7#
      • 1...Rxd7
        • 2.Qxd7#
      • 1...Rxe8
        • 2.dxe8S#
      • 1...Sxc5
        • 2.Be5#
        • 2.Qb8#
        • 2.Qc7#
      • 1...bxc5
        • 2.Be5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(g);OGATE,XR(H)::PXR(g)=S
    • B(a);N_GUARD::S(C),XB(a)
    • S(c);N_GUARD::QAB(E),XS(c)
    • P(d);::B(A)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAB1(E),XS(c)
      • Refutation
        • S(c);XQ(E)
  • Actual
    • K(F);P_SPINR(H),S_FLIGHT
    • Threat
      • S(C)
    • Vars
      • R(g);CHECK,OGATE,XR(H)::PXR(g)=S
      • S(c);CHECK,N_GUARD::QAB1(E),XS(c)
      • R(g);N_PINR(H),OGATE,XP(G)::QAR1(E),XR(g)
      • R(g);OGATE,XR(I)::PXR(g)=S
      • P(d);XS(C)::B(A)
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