MESON Chess Problem Database

Problem Display
PID: 211191 (6B1/2Qn1r1R/2p1p2P/Rn1k3b/7B/1N1P1p2/3b4/3N1K2 w - - 0 1)

Mehner, Heinrich

Badische Neueste Nachrichten, 1980

6B1/2Qn1r1R/2p1p2P/Rn1k3b/7B/1N1P1p2/3b4/3N1K2

#2

10 + 9

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.Rxd7#
    • 1...Rf5
      • 2.Rxd7#
    • 1...Rf6
      • 2.Rxd7#
    • 1...Rf8
      • 2.Rxd7#
    • 1...Bc1
      • 2.Sc3#
    • 1...Be1
      • 2.Se3#
    • 1...Bc3
      • 2.Sxc3#
      • 2.Se3#
    • 1...Be3
      • 2.Sc3#
      • 2.Sxe3#
    • 1...Bb4
      • 2.Se3#
    • 1...Bf4
      • 2.Sc3#
    • 1...Bxa5
      • 2.Se3#
    • 1...Bg5
      • 2.Sc3#
    • 1...Bxh6
      • 2.Sc3#
    • 1...e5
      • 2.Qxd7#
  • Keys
    • 1.Bg3!
      • threat
        • 2.Qd6#
      • 1...Bxa5
        • 2.Se3#
      • 1...e5
        • 2.Qxd7#
      • 1...Rf4
        • 2.Rxd7#
      • 1...Bb4
        • 2.Se3#
      • 1...Bf4
        • 2.Sc3#
      • 1...Sc5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...c5
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(i);OGATE,P_SPINP(g)::R(I),XS(h)
    • B(a);N_GUARD::S(A)
    • B(a);N_GUARD,N_SPINS(c),XR(F)::S(A)
    • B(a);N_GUARD,XP(G)::S(A)
    • P(g);P_SPINR(i),SBLOCK::QAR2(H),XS(h)
  • Actual
    • B(E);
    • Threat
      • QAR1(H)
    • Vars
      • B(a);N_GUARD,N_SPINS(c),XR(F)::S(A)
      • P(g);P_SPINR(i)::QAR2(H),XS(h)
      • R(i);OGATE,P_SPINP(g)::R(I),XS(h)
      • B(a);N_GUARD::S(A)
      • S(h);N_GUARD,N_SPINS(c)::QAR1(H)
      • S(h);N_GUARD::QAR1(H),XS(h)
      • P(f);N_SPINS(c),OGATEB::QAB(H)
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