MESON Chess Problem Database

Problem Display
PID: 97918 (3r2N1/2p2Q1R/1p1k1P1K/qprn4/3b1P1P/3p1B1N/3n2P1/8 w - - 0 1)

Haring, Jacobus

Problemas, 1977

3r2N1/2p2Q1R/1p1k1P1K/qprn4/3b1P1P/3p1B1N/3n2P1/8

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qxc7#
    • 1...Rc1
      • 2.Qxd5#
    • 1...Rc2
      • 2.Qxd5#
    • 1...Rc3
      • 2.Qxd5#
    • 1...Rc4
      • 2.Qxd5#
    • 1...Rc6
      • 2.Qxd5#
    • 1...Rd7
      • 2.Qxd7#
    • 1...Ra8
      • 2.Qd7#
    • 1...Rb8
      • 2.Qd7#
    • 1...Rc8
      • 2.Qd7#
    • 1...Re8
      • 2.Qd7#
    • 1...Rf8
      • 2.Qd7#
    • 1...Rxg8
      • 2.Qd7#
    • 1...Sc3
      • 2.Qe7#
    • 1...Se3
      • 2.Qe7#
    • 1...Sb4
      • 2.Qe7#
    • 1...Sxf4
      • 2.Qe7#
    • 1...Sxf6
      • 2.Qe7#
    • 1...Se7
      • 2.Qxe7#
  • Tries
    • 1.Qe7+?
      • 1...Kc6
        • 2.Qxc7#
      • 1...Sxe7!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Qe6#
      • 1...Kc6
        • 2.Qxc7#
      • 1...Sxf4
        • 2.Qe7#
      • 1...Rc1
        • 2.Qxd5#
      • 1...Rc2
        • 2.Qxd5#
      • 1...Rc3
        • 2.Qxd5#
      • 1...Rc4
        • 2.Qxd5#
      • 1...Rc6
        • 2.Qxd5#
      • 1...Re8
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 11
  • Sets
    • K(i);P-FLIGHT,P_SPINS(g)::QAR1(H),XP(j)
    • R(f);N_GUARD::QAR1(H),XS(g)
    • R(k);N_GUARD::QAR1(H),XR(k)
    • R(k);N_GUARD::QAR1(H)
    • R(k);N_GUARD,XS(J)::QAR1(H)
    • S(g);N_GUARD::QAB1(H)
    • S(g);N_GUARD,XP(D)::QAB1(H)
    • S(g);N_GUARD,XP(F)::QAB1(H)
    • S(g);N_GUARD::QAB1(H),XS(g)
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • K(i);P-FLIGHT,P_SPINS(g)::QAR1(H),XP(j)
      • Refutation
        • S(g);XQ(H)
  • Actual
    • S(C);
    • Threat
      • QAR1(H)
    • Vars
      • K(i);P-FLIGHT,P_SPINS(g)::QAR1(H),XP(j)
      • S(g);N_GUARD,XP(D)::QAB1(H)
      • R(f);N_GUARD::QAR1(H),XS(g)
      • R(k);N_GUARD::QAR1(H)
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