MESON Chess Problem Database

Problem Display
PID: 214281 (7k/Qnp1p2P/2b1P3/1p3P1R/3K2pp/4P1r1/7B/8 w - - 0 1)

Reinhofer, Erwin

Badische Neueste Nachrichten, 1984

7k/Qnp1p2P/2b1P3/1p3P1R/3K2pp/4P1r1/7B/8

#2

8 + 9

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kg7
      • 2.h8Q#
    • 1...Rg1
      • 2.Be5#
    • 1...Rg2
      • 2.Be5#
    • 1...Rf3
      • 2.Be5#
    • 1...Rh3
      • 2.Be5#
  • Tries
    • 1.Bxg3?
      • threat
        • 2.Be5#
      • 1...Kg7
        • 2.h8Q#
      • 1...hxg3!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Kd3#
      • 1...Kg7
        • 2.h8Q#
      • 1...Rxe3
        • 2.Kxe3#
      • 1...Rg1
        • 2.Be5#
      • 1...Rg2
        • 2.Be5#
      • 1...Be4
        • 2.Kxe4#
      • 1...Sc5
        • 2.Kxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • K(i);OGATE,S_FLIGHT::P=Q
    • R(a);OGATE::B(A)
  • Tries
    • Try
      • B(A);XR(a)
      • Threat
        • B(A)
      • Vars
        • K(i);OGATE,S_FLIGHT::P=Q
      • Refutation
        • P(c);XB(A)
  • Actual
    • Q(G);
    • Threat
      • QAB(G)+K(C)
    • Vars
      • K(i);OGATE,S_FLIGHT::P=Q
      • R(a);XP(B)::QAB(G)+K(C),XR(a)
      • R(a);OGATE::B(A)
      • B(e);::QAB(G)+K(C),XB(e)
      • S(f);::QAB(G)+K(C),XS(f)
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