MESON Chess Problem Database

Problem Display
PID: 244388 (Q1N1qr2/2N5/B1P1rRp1/6B1/R2Pk1K1/8/8/8 w - - 0 1)

Dittrich, Stefan

Schach, 1976

Q1N1qr2/2N5/B1P1rRp1/6B1/R2Pk1K1/8/8/8

#2

10 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc6
      • 2.Rxe6#
    • 1...Qd8
      • 2.Rxe6#
    • 1...Re5
      • 2.Sd6#
      • 2.d5#
    • 1...Rxc6
      • 2.Sd6#
    • 1...Rd6
      • 2.Sxd6#
    • 1...Re7
      • 2.Sd6#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Sc3#
      • 1...Kd5
        • 2.Sc3#
      • 1...Kd3!
    • 1.Bf4?
      • threat
        • 2.d5#
      • 1...Qxc6
        • 2.Rxe6#
      • 1...Rxc6
        • 2.Sd6#
      • 1...Qe7!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Qb1#
      • 1...Qxc6
        • 2.Rxe6#
      • 1...Rxc6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • Q(d);N_GUARD,P_SPINQ(d),XP(F)::R(G),XR(b)
    • Q(d);N_GUARD::R(G),XR(b)
    • R(b);N_GUARD,P_SPINR(b),XP(F)::S(J)
    • R(b);N_GUARD::S(J),XR(b)
    • R(b);N_GUARD::S(J)
  • Tries
    • Try
      • S(H);
      • Threat
        • S(H)
      • Vars
        • K(a);S_FLIGHT::S(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Threat
        • R(A)+P(B)
      • Vars
        • Q(d);N_GUARD,P_SPINQ(d),XP(F)::R(G),XR(b)
        • R(b);N_GUARD,P_SPINR(b),XP(F)::S(J)
      • Refutation
        • Q(d);
  • Actual
    • Q(I);
    • Threat
      • QAB(I)
    • Vars
      • Q(d);N_GUARD,P_SPINQ(d),XP(F)::R(G),XR(b)
      • R(b);N_GUARD,P_SPINR(b),XP(F)::S(J)
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