MESON Chess Problem Database

Problem Display
PID: 87849 (8/2nN2b1/6r1/1N4r1/2B1k1p1/8/2K2QP1/8 w - - 0 1)

Than, Sergiu

Buletin Problemistic, 1970

8/2nN2b1/6r1/1N4r1/2B1k1p1/8/2K2QP1/8

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sc3#
    • 1...Rd6
      • 2.Sxd6#
    • 1...Rf6
      • 2.Sc3#
    • 1...Bc3
      • 2.Sxc3#
    • 1...Be5
      • 2.Sc5#
    • 1...Bf6
      • 2.Sd6#
    • 1...Bh6
      • 2.Sc3#
    • 1...Bf8
      • 2.Sc3#
    • 1...Sd5
      • 2.Bd3#
    • 1...Se6
      • 2.Sd6#
    • 1...g3
      • 2.Qf3#
  • Tries
    • 1.Qe3+?
      • 1...Kf5
        • 2.Bd3#
      • 1...Kxe3!
  • Keys
    • 1.g3!
      • threat
        • 2.Qf4#
      • 1...Rf5
        • 2.Qe2#
      • 1...Rf6
        • 2.Sc3#
      • 1...Be5
        • 2.Sc5#
      • 1...Sd5
        • 2.Bd3#
      • 1...Se6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • R(c);S_CUTB(f)::S(E)
    • R(d);N_GUARD::S(E),XR(d)
    • R(d);S_CUTB(f)::S(E)
    • B(f);N_GUARD::S(E),XB(f)
    • B(f);SBLOCK,S_CUTR(c)::S(F)
    • B(f);S_CUTR(d)::S(E)
    • B(f);N_GUARD::S(E)
    • S(e);SBLOCK::B(D)
    • S(e);S_CUTR(d)::S(E)
    • P(b);N_GUARD::QAB1(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
  • Actual
    • P(C);
    • Threat
      • QAR1(B)
    • Vars
      • R(c);SBLOCK::QAR2(B)
      • R(d);S_CUTB(f)::S(E)
      • B(f);SBLOCK,S_CUTR(c)::S(F)
      • S(e);SBLOCK::B(D)
      • S(e);S_CUTR(d)::S(E)
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Developed and maintained by Brian Stephenson.
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