MESON Chess Problem Database

Problem Display
PID: 59441 (6q1/n1rp4/3R4/b3P3/B1k1PQ1n/1RPp3r/KP2P3/6B1 w - - 0 1)

Maleika, Gerhard

The Problemist Supplement, 2005

6q1/n1rp4/3R4/b3P3/B1k1PQ1n/1RPp3r/KP2P3/6B1

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5
      • 2.exd5#
    • 1...Qf7
      • 2.Qxf7#
    • 1...Qg2
      • 2.Qf7#
    • 1...Qg3
      • 2.Qf7#
    • 1...Qg5
      • 2.Qf7#
    • 1...Qb8
      • 2.Qf7#
    • 1...Qc8
      • 2.Qf7#
    • 1...Qd8
      • 2.Qf7#
    • 1...Qh8
      • 2.Qf7#
    • 1...Rh1
      • 2.exd3#
    • 1...Rh2
      • 2.exd3#
    • 1...Rc5
      • 2.Rd4#
    • 1...Bb4
      • 2.Rxb4#
    • 1...Bb6
      • 2.Rb4#
    • 1...Sf3
      • 2.exd3#
    • 1...Sf5
      • 2.exf5#
    • 1...Sb5
      • 2.Bxb5#
    • 1...Sc6
      • 2.Bb5#
    • 1...Sc8
      • 2.Bb5#
  • Keys
    • 1.Rb5!
      • threat
        • 2.Rd4#
      • 1...Qxg1
        • 2.Qf7#
      • 1...Bxc3
        • 2.b3#
      • 1...Sxb5
        • 2.Bb3#
      • 1...Qd5
        • 2.exd5#
      • 1...Bb6
        • 2.Rb4#
      • 1...Sf3
        • 2.exd3#
      • 1...Sf5
        • 2.exf5#
      • 1...Sc6
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 13
  • Sets
    • Q(i);OGATE::QAR(I)+P(H),XQ(i)
    • Q(i);N_GUARD::QAB(I),XQ(i)
    • Q(i);N_GUARD::QAB(I)
    • R(b);N_GUARD::P(D),XP(a)
    • R(g);SBLOCK::R1(K)
    • B(e);N_GUARD::R1(E),XB(e)
    • B(e);N_GUARD::R1(E)
    • S(d);S_CUTR(b)::P(D),XP(a)
    • S(d);OGATE::QAR(I)+P(H),XS(d)
    • S(f);N_GUARD::B(G),XS(f)
    • S(f);N_GUARD::B(G)
  • Actual
    • R(E);
    • Threat
      • R1(K)
    • Vars
      • Q(i);N_GUARD,XB(A)::QAB(I)
      • B(e);SBLOCK,XP(F)::P(C)
      • S(f);SBLOCK,XR(E)::B(G)
      • Q(i);OGATE::QAR(I)+P(H),XQ(i)
      • B(e);N_GUARD::R1(E)
      • S(d);S_CUTR(b)::P(D),XP(a)
      • S(d);OGATE::QAR(I)+P(H),XS(d)
      • S(f);S_CUTR(g)::R1(E)
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