MESON Chess Problem Database

Problem Display
PID: 65363 (B1Q5/3p4/1N1b4/5p1K/2nP1k2/8/b3PB2/2q3R1 w - - 0 1)

Denkovski, Gligor

3rd Place, Liga Problemista, 1986

B1Q5/3p4/1N1b4/5p1K/2nP1k2/8/b3PB2/2q3R1

#2

8 + 7

56 The Problemist 2006
15148 Sadier Collection 2014
5503 ISC 2015
16117 Izbrani Shakhovski Problemi (Denkovskis) 2015
15422 Problemskak 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Qxc1#
    • 1...Sd2
      • 2.e3#
    • 1...Sa3
      • 2.Qxc1#
    • 1...Se3
      • 2.Bg3#
    • 1...Sa5
      • 2.Qxc1#
    • 1...Se5
      • 2.Qxc1#
    • 1...Sxb6
      • 2.Qxc1#
  • Tries
    • 1.Bg2?
      • threat
        • 2.Sd5#
      • 1...Sxb6
        • 2.Qxc1#
      • 1...Sb2
        • 2.Qxc1#
      • 1...Sd2
        • 2.e3#
      • 1...Sa3
        • 2.Qxc1#
      • 1...Sa5
        • 2.Qxc1#
      • 1...Se5
        • 2.Qxc1#
      • 1...Se3!
    • 1.Bf3?
      • threat
        • 2.Sd5#
      • 1...Sxb6
        • 2.Qxc1#
      • 1...Sb2
        • 2.Qxc1#
      • 1...Sa3
        • 2.Qxc1#
      • 1...Se3
        • 2.Bg3#
      • 1...Sa5
        • 2.Qxc1#
      • 1...Se5
        • 2.Qxc1#
      • 1...Sd2!
    • 1.Qg8?
      • threat
        • 2.Qg3#
        • 2.Qg5#
      • 1...Qa3
        • 2.Qg5#
      • 1...Qe3
        • 2.Qg5#
      • 1...Qc3
        • 2.Qg5#
      • 1...Be7
        • 2.Qg3#
      • 1...Qxg1!
    • 1.e3+?
      • 1...Sxe3
        • 2.Bg3#
      • 1...Qxe3!
  • Keys
    • 1.Bh1!
      • threat
        • 2.Sd5#
      • 1...Sxb6
        • 2.Qxc1#
      • 1...Sb2
        • 2.Qxc1#
      • 1...Sd2
        • 2.e3#
      • 1...Sa3
        • 2.Qxc1#
      • 1...Se3
        • 2.Bg3#
      • 1...Sa5
        • 2.Qxc1#
      • 1...Se5
        • 2.Qxc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(c);OGATE::QAB(H),XQ(a)
    • S(c);N_GUARD,S_CUTQ(a)::P(B)
    • S(c);SBLOCK::B(C)
    • S(c);OGATE,XS(F)::QAB(H),XQ(a)
  • Tries
    • Try
      • B(G);
      • Threat
        • S(F)
      • Vars
        • S(c);OGATE,XS(F)::QAB(H),XQ(a)
        • S(c);OGATE::QAB(H),XQ(a)
        • S(c);N_GUARD,S_CUTQ(a)::P(B)
      • Refutation
        • S(c);
    • Try
      • B(G);
      • Threat
        • S(F)
      • Vars
        • S(c);OGATE,XS(F)::QAB(H),XQ(a)
        • S(c);OGATE::QAB(H),XQ(a)
        • S(c);SBLOCK::B(C)
      • Refutation
        • S(c);
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);::QAB1(H)
        • B(f);::QAB1(H)
      • Refutation
        • Q(a);XR(A)
    • Try
      • P(B);CHECK
      • Vars
        • S(c);SBLOCK,XP(B)::B(C)
      • Refutation
        • Q(a);XP(B)
  • Actual
    • B(G);
    • Threat
      • S(F)
    • Vars
      • S(c);OGATE,XS(F)::QAB(H),XQ(a)
      • S(c);OGATE::QAB(H),XQ(a)
      • S(c);N_GUARD,S_CUTQ(a)::P(B)
      • S(c);SBLOCK::B(C)
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