MESON Chess Problem Database

Problem Display
PID: 139368 (b4Q1K/2B5/7N/4P1p1/1p2k3/3RP1n1/2P1p2N/r3b1n1 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Rochade Europa, 2010

b4Q1K/2B5/7N/4P1p1/1p2k3/3RP1n1/2P1p2N/r3b1n1

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Qxa8#
    • 1...Rc1
      • 2.Qxa8#
    • 1...Rd1
      • 2.Qxa8#
    • 1...Bf2
      • 2.Qxb4#
    • 1...Sf3
      • 2.Qxf3#
    • 1...Sh3
      • 2.Qf3#
    • 1...Sf1
      • 2.Qf5#
    • 1...Sh1
      • 2.Qf5#
    • 1...Sf5
      • 2.Qxf5#
    • 1...Sh5
      • 2.Qf5#
    • 1...g4
      • 2.Qf4#
  • Tries
    • 1.S6g4?
      • threat
        • 2.Rd4#
      • 1...Bc3
        • 2.Sf2#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sf5
        • 2.Sf6#
      • 1...Rd1!
    • 1.Qf7?
      • threat
        • 2.Qc4#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Bc3!
    • 1.Qc8?
      • threat
        • 2.Qg4#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sh5
        • 2.Qf5#
      • 1...g4
        • 2.Qxg4#
      • 1...Sh3!
  • Keys
    • 1.S2g4!
      • threat
        • 2.Rd4#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Rd1
        • 2.Qxa8#
      • 1...Bc3
        • 2.Sf2#
      • 1...Sf3
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(a);N_GUARD::QAB(H),XB(i)
    • B(b);N_GUARD::QAR(H),XP(f)
    • S(c);N_GUARD::QAB1(H),XS(c)
    • S(c);N_GUARD::QAB1(H)
    • S(e);N_GUARD::QAB1(H)
    • S(e);N_GUARD::QAB1(H),XS(e)
    • P(h);N_GUARD::QAR1(H)
  • Tries
    • Try
      • S(F);
      • Threat
        • R1(C)
      • Vars
        • B(b);N_GUARD,P_PINP(E)::S(F)
        • S(c);N_GUARD::QAB1(H),XS(c)
        • S(e);SBLOCK::S(F)
      • Refutation
        • R(a);
    • Try
      • Q(H);
      • Threat
        • QAR2(H)
      • Vars
        • B(i);N_GUARD::QAB1(H),XB(i)
        • S(c);N_GUARD::QAB1(H),XS(c)
        • S(e);N_GUARD::QAB1(H),XS(e)
      • Refutation
        • B(b);P_PINP(E)
    • Try
      • Q(H);
      • Threat
        • QAR2(H)
      • Vars
        • S(e);N_GUARD::QAB1(H),XS(e)
        • S(e);N_GUARD::QAB1(H)
        • P(h);::QAR2(H),XP(h)
      • Refutation
        • S(c);
  • Actual
    • S(B);
    • Threat
      • R1(C)
    • Vars
      • S(e);N_GUARD::QAB1(H),XS(e)
      • R(a);N_GUARD::QAB(H),XB(i)
      • B(b);N_GUARD,P_PINP(E)::S(B)
      • S(c);SBLOCK::S(B)
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