MESON Chess Problem Database

Problem Display
PID: 63311 (2N2b1Q/qp1P1K2/2b5/r2kPPR1/p7/2R1pPp1/2N5/4r3 w - - 0 1)

Dittrich, Stefan

1st Prize, Urania-80 JT, 1980

2N2b1Q/qp1P1K2/2b5/r2kPPR1/p7/2R1pPp1/2N5/4r3

#2

10 + 10

3752 FIDE Album (1980-1982) 1988
23 Die Schwalbe 2005
1106 Rochade Europa 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Qb6
      • 2.Sxb6#
    • 1...Qb8
      • 2.Sb6#
    • 1...Qa8
      • 2.Sb6#
    • 1...Bh6
      • 2.Se7#
    • 1...Be7
      • 2.Sxe7#
  • Tries
    • 1.e6?
      • threat
        • 2.f6#
      • 1...Qb8
        • 2.Qd4#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Bh6
        • 2.Sb4#
      • 1...Bd6!
    • 1.f6?
      • threat
        • 2.e6#
      • 1...Qb8
        • 2.Sb6#
      • 1...Bd6
        • 2.exd6#
      • 1...Bh6
        • 2.Se7#
      • 1...Qd4!
    • 1.d8Q+?
      • 1...Bd6
        • 2.Se7#
        • 2.Qxd6#
      • 1...Bd7!
    • 1.d8R+?
      • 1...Bd6
        • 2.Se7#
        • 2.Rxd6#
      • 1...Bd7!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qe4#
      • 1...Kxe5
        • 2.f6#
      • 1...Qd4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(h);N_GUARD::S(I),XQ(h)
    • Q(h);N_GUARD::S(I)
    • B(j);N_GUARD::S(I)
    • B(j);N_GUARD::S(I),XB(j)
  • Tries
    • Try
      • P(D);
      • Threat
        • R(F)+P(E)
      • Vars
        • Q(h);N_GUARD::QAR1(J)
        • Q(h);N_GUARD::QAR1(J),XQ(h)
        • B(j);N_GUARD::S(A)
      • Refutation
        • B(j);
    • Try
      • P(E);
      • Threat
        • R(F)+P(D)
      • Vars
        • Q(h);N_GUARD::S(I)
        • B(j);OGATE::R(F)+P(D),XB(j)
        • B(j);N_GUARD::S(I)
      • Refutation
        • Q(h);
    • Try
      • P(G);CHECK
      • Refutation
        • B(g);P_SPINB(g)
    • Try
      • P(G);CHECK
      • Refutation
        • B(g);P_SPINB(g)
  • Actual
    • Q(J);
    • Threat
      • QAB1(J)
    • Vars
      • K(f);P-FLIGHT,XP(D)::R(F)+P(E)
      • Q(h);N_GUARD::QAR1(J),XQ(h)
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