MESON Chess Problem Database

Problem Display
PID: 249884 (3rr1Nq/5Q2/4p3/5n2/R2PkN2/KR4B1/2P5/1B6 w - - 0 1)

Kratschmer, Ralf

Deutsche Schachzeitung, 1982

3rr1Nq/5Q2/4p3/5n2/R2PkN2/KR4B1/2P5/1B6

#2

10 + 6

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qf6
      • 2.Sxf6#
    • 1...Qh1
      • 2.Sf6#
    • 1...Qh2
      • 2.Sf6#
    • 1...Qh3
      • 2.Sf6#
    • 1...Qh5
      • 2.Sf6#
    • 1...Qh7
      • 2.Sf6#
    • 1...Ra8
      • 2.Qb7#
  • Tries
    • 1.Qxe6+?
      • 1...Qe5
        • 2.Sf6#
      • 1...Rxe6!
  • Keys
    • 1.Se2!
      • threat
        • 2.c4#
      • 1...Kd5
        • 2.Qb7#
      • 1...Qxd4
        • 2.Sf6#
      • 1...Rxd4
        • 2.Qb7#
      • 1...Sxd4
        • 2.Qf3#
      • 1...Qh1
        • 2.Sf6#
      • 1...Se3
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • Q(f);N_GUARD::S(J),XQ(f)
    • Q(f);N_GUARD::S(J)
    • R(d);N_GUARD,P_PINR(F)::QAB(I)
  • Tries
    • Try
      • Q(I);CHECK,XP(c)
      • Vars
        • Q(f);P_SPINQ(f)::S(J)
      • Refutation
        • R(e);XQ(I)
  • Actual
    • S(H);
    • Threat
      • B(A)+P(B)
    • Vars
      • K(a);P_SPINP(c),S_CUTR(d),S_FLIGHT::QAB(I)
      • Q(f);N_GUARD,P_SPINQ(f),XP(G)::S(J)
      • R(d);N_GUARD,P_SPINR(d),XP(G)::QAB(I)
      • S(b);OGATE,P_SPINS(b),XP(G)::QAB1(I)
      • Q(f);N_GUARD::S(J)
      • S(b);SBLOCK::S(H)
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