MESON Chess Problem Database

Problem Display
PID: 232672 (2Q5/2pBp2n/rr1P1pP1/3Nk1b1/5p1N/3R1KR1/8/2B5 w - - 0 1)

Dittrich, Stefan

Freie Presse, 1976

2Q5/2pBp2n/rr1P1pP1/3Nk1b1/5p1N/3R1KR1/8/2B5

#2

10 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd6
      • 2.Qxc7#
    • 1...Rxd6
      • 2.Bb2#
    • 1...Bxh4
      • 2.Bxf4#
    • 1...cxd6
      • 2.Qc3#
    • 1...exd6
      • 2.Qe8#
  • Tries
    • 1.Sxb6?
      • threat
        • 2.Sc4#
        • 2.Bb2#
        • 2.Rd5#
      • 1...cxb6
        • 2.Bb2#
        • 2.Qc3#
      • 1...f5
        • 2.Bb2#
      • 1...Ra2
        • 2.Sc4#
        • 2.Rd5#
      • 1...Ra3
        • 2.Sc4#
      • 1...Ra4
        • 2.Rd5#
      • 1...Ra5
        • 2.Sc4#
        • 2.Bb2#
      • 1...c6
        • 2.Sc4#
        • 2.Bb2#
      • 1...e6
        • 2.Sc4#
        • 2.Bb2#
      • 1...Rxb6!
    • 1.Bb2+?
      • 1...Kxd6
        • 2.Qxc7#
      • 1...Rxb2!
    • 1.Bf5?
      • threat
        • 2.Qe6#
      • 1...Kxd6
        • 2.Qxc7#
      • 1...Rxd6
        • 2.Bb2#
      • 1...e6
        • 2.Qxe6#
      • 1...Sf8!
  • Keys
    • 1.Sxf6!
      • threat
        • 2.Sg4#
      • 1...Kxf6
        • 2.Qh8#
      • 1...Bxf6
        • 2.Bxf4#
      • 1...Sxf6
        • 2.Rxg5#
      • 1...exf6
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • K(b);OGATEB,S_FLIGHT,XP(G)::QAB1(J),XP(g)
    • R(e);N_GUARD,SBLOCK,XP(G)::B(A)
    • B(c);N_GUARD,XS(E)::B(A),XP(a)
    • P(g);OGATE,SBLOCK,XP(G)::QAB(J)
    • P(h);OGATEB,SBLOCK,XP(G)::QAR(J)
  • Tries
    • Try
      • S(F);XR(e)
      • Threat
        • DUALS(3)
      • Vars
        • P(f);::B(A)
        • R(d);P_PINR(B)::S(F)
        • R(d);::R1(B)
      • Refutation
        • R(d);XS(F)
    • Try
      • B(A);CHECK
      • Vars
        • K(b);S_FLIGHT,XP(G)::QAB1(J),XP(g)
      • Refutation
        • R(e);XB(A)
    • Try
      • B(I);
      • Threat
        • QAR1(J)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XP(G)::QAB1(J),XP(g)
        • R(e);N_GUARD,SBLOCK,XP(G)::B(A)
        • P(h);::QAR1(J),XP(h)
      • Refutation
        • S(i);
  • Actual
    • S(F);XP(f)
    • Threat
      • S(F)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(F)::QAB(J)
      • B(c);N_GUARD,SBLOCK,XS(F)::B(A),XP(a)
      • S(i);N_GUARD,SBLOCK,XS(F)::R(D),XB(c)
      • P(h);OGATEB,SBLOCK,XS(F)::QAR(J)
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