MESON Chess Problem Database

Problem Display
PID: 50682 (5bq1/7P/2P2Bp1/2p3R1/KnkN1pb1/R7/1PPp2B1/1n6 w - - 0 1)

Barth, Michael

3rd HM., Sachsische Zeitung, 2000

(First published on Sat Oct 14 2000)

5bq1/7P/2P2Bp1/2p3R1/KnkN1pb1/R7/1PPp2B1/1n6

#2

10 + 10

15391 Problemschach-Jahrbuch (2000) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3+
      • 2.Rxc3#
    • 1...Sd3
      • 2.cxd3#
  • Tries
    • 1.Se2?
      • threat
        • 2.b3#
      • 1...Sc3+
        • 2.Rxc3#
      • 1...Sxc2!
    • 1.Sf3?
      • threat
        • 2.b3#
      • 1...Sc3+
        • 2.Rxc3#
      • 1...Sxc2
        • 2.Bf1#
      • 1...Bf5!
    • 1.Sb5?
      • threat
        • 2.b3#
      • 1...Sc3+
        • 2.Rxc3#
      • 1...Sxc2!
    • 1.Sf5?
      • threat
        • 2.b3#
      • 1...Sc3+
        • 2.Rxc3#
      • 1...Sxc2
        • 2.hxg8Q#
        • 2.hxg8B#
      • 1...f3
        • 2.Se3#
      • 1...Bf3!
    • 1.Bf1+?
      • 1...Sd3
        • 2.Bxd3#
        • 2.cxd3#
      • 1...Be2!
    • 1.Re3?
      • threat
        • 2.b3#
      • 1...Sc3+
        • 2.Rxc3#
      • 1...Sd3
        • 2.cxd3#
      • 1...fxe3!
    • 1.hxg8Q+?
      • 1...Sd5
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Be6!
    • 1.hxg8B+?
      • 1...Sd5
        • 2.B2xd5#
        • 2.B8xd5#
      • 1...Be6!
  • Keys
    • 1.Se6!
      • threat
        • 2.b3#
      • 1...Sc3+
        • 2.Rxc3#
      • 1...Sxc2
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(a);CHECK,N_GUARD::R1(D),XS(a)
    • S(c);OGATE::P(B),XS(c)
  • Tries
    • Try
      • S(F);
      • Threat
        • P(A)
      • Vars
        • S(a);CHECK,N_GUARD::R1(D),XS(a)
      • Refutation
        • S(c);XP(B)
    • Try
      • S(F);
      • Threat
        • P(A)
      • Vars
        • S(a);CHECK,N_GUARD::R1(D),XS(a)
        • S(c);N_GUARD,XP(B)::B(C)
      • Refutation
        • B(f);
    • Try
      • S(F);
      • Threat
        • P(A)
      • Vars
        • S(a);CHECK,N_GUARD::R1(D),XS(a)
      • Refutation
        • S(c);XP(B)
    • Try
      • S(F);
      • Threat
        • P(A)
      • Vars
        • S(a);CHECK,N_GUARD::R1(D),XS(a)
        • S(c);N_GUARD,XP(B)::PXQ(j)=Q
        • P(e);N_GUARD::S(F)
      • Refutation
        • B(f);
    • Try
      • B(C);CHECK
      • Refutation
        • B(f);P_SPINB(f)
    • Try
      • R(D);
      • Threat
        • P(A)
      • Vars
        • S(a);CHECK,N_GUARD::R1(D),XS(a)
        • S(c);OGATE::P(B),XS(c)
      • Refutation
        • P(e);XR(D)
    • Try
      • P(J);CHECK,XQ(j)
      • Refutation
        • B(f);P_SPINB(f)
    • Try
      • P(J);CHECK,XQ(j)
      • Refutation
        • B(f);P_SPINB(f)
  • Actual
    • S(F);
    • Threat
      • P(A)
    • Vars
      • S(a);CHECK,N_GUARD::R1(D),XS(a)
      • S(c);N_GUARD,XP(B)::B(C)
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