MESON Chess Problem Database

Problem Display
PID: 208465 (5bB1/5NBq/K5pR/2p1p2N/1k6/RP2n2r/1Pn2r2/1bQ5 w - - 0 1)

Ernst, Erich

Badische Neueste Nachrichten, 1987

5bB1/5NBq/K5pR/2p1p2N/1k6/RP2n2r/1Pn2r2/1bQ5

#2

10 + 11

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rf1
      • 2.Qd2#
    • 1...Rd2
      • 2.Qxd2#
    • 1...Rff3
      • 2.Qd2#
    • 1...Rf4
      • 2.Qd2#
    • 1...Rf5
      • 2.Qd2#
    • 1...Rxf7
      • 2.Qd2#
    • 1...Sa1
      • 2.Qc3#
    • 1...Se1
      • 2.Qc3#
    • 1...Sxa3
      • 2.Qc3#
    • 1...Sd4
      • 2.Qc3#
    • 1...c4
      • 2.Bxf8#
    • 1...e4
      • 2.Bc3#
    • 1...gxh5
      • 2.Rb6#
    • 1...g5
      • 2.Rb6#
  • Tries
    • 1.Qe1+?
      • 1...Rd2
        • 2.Qxd2#
      • 1...Sxe1!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sd3#
      • 1...Rxf4
        • 2.Qd2#
      • 1...Sxa3
        • 2.Qc3#
      • 1...exf4
        • 2.Bc3#
      • 1...c4
        • 2.Bxf8#
      • 1...Rd2
        • 2.Qxd2#
      • 1...Sa1
        • 2.Qc3#
      • 1...Se1
        • 2.Qc3#
      • 1...Sd4
        • 2.Qc3#
      • 1...Sd1
        • 2.Sd5#
      • 1...Sf1
        • 2.Sd5#
      • 1...Sg2
        • 2.Sd5#
      • 1...Sc4
        • 2.Sd5#
      • 1...Sg4
        • 2.Sd5#
      • 1...Sd5
        • 2.Sxd5#
      • 1...Sf5
        • 2.Sd5#
      • 1...e4
        • 2.Bc3#
      • 1...g5
        • 2.Rb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 5
  • Sets
    • R(c);N_GUARD::QAB(A)
    • R(c);N_GUARD::QAB(A),XR(c)
    • R(c);N_GUARD,XS(H)::QAB(A)
    • S(b);OGATE::QAB1(A)
    • S(b);OGATE,XR(C)::QAB1(A)
    • P(g);OGATEB::B(I),XB(k)
    • P(h);OGATE::B(I)
    • P(i);OGATE,XS(E)::R(G)
    • P(i);OGATE::R(G)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAB(A),XR(c)
      • Refutation
        • S(b);XQ(A)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • R(c);N_GUARD,XS(E)::QAB(A)
      • S(b);OGATE,XR(C)::QAB1(A)
      • P(h);OGATE,XS(E)::B(I)
      • P(g);OGATEB::B(I),XB(k)
      • R(c);N_GUARD::QAB(A),XR(c)
      • S(b);OGATE::QAB1(A)
      • S(d);N_GUARD::S(E)
      • S(d);N_GUARD::S(E),XS(d)
      • P(h);OGATE::B(I)
      • P(i);OGATE::R(G)
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