MESON Chess Problem Database

Problem Display
PID: 232195 (7B/p4K2/2R1Np1p/4k3/1pPpp1nN/4R2p/rQnP1p1r/4b3 w - - 0 1)

Bottger, Horst

Freie Presse, 1974

7B/p4K2/2R1Np1p/4k3/1pPpp1nN/4R2p/rQnP1p1r/4b3

#2

9 + 14

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Qxd4#
    • 1...Sa3
      • 2.Qxd4#
    • 1...Scxe3
      • 2.Qxd4#
    • 1...Sgxe3
      • 2.Bxf6#
  • Tries
    • 1.Ke7?
      • threat
        • 2.Rc5#
      • 1...Scxe3
        • 2.Qxd4#
      • 1...Sgxe3
        • 2.Bxf6#
      • 1...Ra5!
    • 1.Sf4?
      • threat
        • 2.Sd3#
        • 2.Sfg6#
      • 1...Scxe3
        • 2.Sfg6#
      • 1...Sgxe3
        • 2.Sfg6#
      • 1...f1Q
        • 2.Sfg6#
      • 1...f1B
        • 2.Sfg6#
      • 1...Ra3
        • 2.Sfg6#
      • 1...Kxf4!
    • 1.Qxb4?
      • threat
        • 2.Qc5#
        • 2.Qd6#
        • 2.Qb5#
        • 2.Qb8#
      • 1...Scxe3
        • 2.Qd6#
        • 2.Qb8#
      • 1...Sgxe3
        • 2.Bxf6#
        • 2.Qd6#
        • 2.Qb8#
      • 1...Rb2
        • 2.Qc5#
        • 2.Qd6#
      • 1...Ra5
        • 2.Qxa5#
        • 2.Qd6#
        • 2.Qb8#
      • 1...Sa3
        • 2.Qc5#
        • 2.Qd6#
        • 2.Qb8#
      • 1...a6
        • 2.Qc5#
        • 2.Qd6#
        • 2.Qb8#
      • 1...Sxb4!
  • Keys
    • 1.d3!
      • threat
        • 2.Rxe4#
      • 1...Scxe3
        • 2.Qxd4#
      • 1...Sgxe3
        • 2.Bxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • S(c);N_GUARD::QAB1(A),XP(h)
    • S(c);N_GUARD,XR(C)::QAB1(A),XP(h)
    • S(j);N_GUARD,XR(C)::B(I),XP(l)
  • Tries
    • Try
      • K(H);P-FLIGHT
      • Threat
        • R(F)
      • Vars
        • S(c);N_GUARD,XR(C)::QAB1(A),XP(h)
        • S(j);N_GUARD,XR(C)::B(I),XP(l)
      • Refutation
        • R(b);
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);XR(C)::S(G)
        • S(j);XR(C)::S(G)
        • P(d);::S(G)
        • R(b);::S(G)
      • Refutation
        • K(k);N_SPINP(h),S_FLIGHT,XS(G)
    • Try
      • Q(A);N_PINP(h),P_PINP(i),XP(g)
      • Threat
        • DUALS(4)
      • Refutation
        • S(c);XQ(A)
  • Actual
    • P(B);
    • Threat
      • R1(C),XP(i)
    • Vars
      • S(c);N_GUARD,XR(C)::QAB1(A),XP(h)
      • S(j);N_GUARD,XR(C)::B(I),XP(l)
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