MESON Chess Problem Database

Problem Display
PID: 255121 (5n1n/3b1p2/Q1p5/2p1NP1R/R2pk1N1/1B2P2K/1P2p1PP/2Brr3 w - - 0 1)

Dittrich, Stefan

Prize, Leninskaya Smena, 1981

5n1n/3b1p2/Q1p5/2p1NP1R/R2pk1N1/1B2P2K/1P2p1PP/2Brr3

#2

13 + 11

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc1
      • 2.Qd3#
    • 1...Rd3
      • 2.Qxd3#
    • 1...Bxf5
      • 2.Qxc6#
    • 1...Bc8
      • 2.Qxc6#
  • Tries
    • 1.Sf3?
      • threat
        • 2.Sf2#
        • 2.Sf6#
      • 1...Rxc1
        • 2.Sd2#
      • 1...Bxf5
        • 2.Sg5#
      • 1...Rd2
        • 2.Sxd2#
      • 1...Rf1
        • 2.Sf6#
      • 1...Sh7
        • 2.Sf2#
      • 1...f6
        • 2.Sf2#
        • 2.Sxf6#
      • 1...c4!
    • 1.Qxe2?
      • threat
        • 2.Qf3#
      • 1...Rf1
        • 2.exd4#
      • 1...Rxe2!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sd6#
      • 1...Kd3
        • 2.Sf2#
      • 1...Kd5
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(a);N_GUARD,XB(A)::QAB1(M)
    • R(a);N_GUARD,P_PINP(F)::QAB1(M),XR(a)
    • B(h);N_GUARD,P_PINS(I),XP(K)::QAB(M),XP(g)
    • B(h);N_GUARD::QAB(M),XP(g)
  • Tries
    • Try
      • S(J);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);N_GUARD,XB(A)::S(J)
        • B(h);P_PINS(I),SBLOCK,XP(K)::S(J)
        • R(a);N_GUARD::S(J),XR(a)
        • R(b);::S(I)
        • S(j);::S(I)
      • Refutation
        • P(f);N_SPINP(d)
    • Try
      • Q(M);XP(c)
      • Threat
        • QAB1(M)
      • Vars
        • R(b);N_GUARD::QAR(M)+P(F),XP(d)
      • Refutation
        • R(b);XQ(M)
  • Actual
    • S(J);N_PINP(d)
    • Threat
      • S(J)
    • Vars
      • K(e);N_GUARD,S_FLIGHT::S(I)
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