MESON Chess Problem Database

Problem Display
PID: 92742 (3Q1NKb/3p2n1/8/2P1k3/8/2Pn1Br1/3P2NB/8 w - - 0 1)

Gavrilov, Constantin Grigorievich

Tidskrift for Schack, 1908

3Q1NKb/3p2n1/8/2P1k3/8/2Pn1Br1/3P2NB/8

#2

9 + 6

15 British Chess Magazine 1911
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sh5+
      • 2.Qg5#
    • 1...Se8+
      • 2.Qg5#
  • Tries
    • 1.Kf7?
      • threat
        • 2.Qf6#
      • 1...Kf5
        • 2.Qf6#
      • 1...Sf5
        • 2.Sg6#
        • 2.Sxd7#
      • 1...Sh5
        • 2.Qg5#
      • 1...Se8
        • 2.Qg5#
      • 1...Se6!
    • 1.Sxd7+?
      • 1...Kf5
        • 2.Qf6#
      • 1...Ke6!
    • 1.Bxg3+?
      • 1...Kf5
        • 2.Se3#
        • 2.Sh4#
      • 1...Sf4!
  • Keys
    • 1.Sh4!
      • 1...Sf5+
        • 2.Shg6#
      • 1...Sh5+
        • 2.Qg5#
      • 1...Se6+
        • 2.Sfg6#
      • 1...Se8+
        • 2.Qg5#
      • 1...Kf4
        • 2.Sfg6#
      • 1...Sxc5
        • 2.Bxg3#
      • 1...Sc1
        • 2.Bxg3#
      • 1...Se1
        • 2.Bxg3#
      • 1...Sb2
        • 2.Bxg3#
      • 1...Sf2
        • 2.Bxg3#
      • 1...Sb4
        • 2.Bxg3#
      • 1...Sf4
        • 2.d4#
      • 1...d5
        • 2.Qd6#
      • 1...d6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • S(e);CHECK,N_GUARD::QAR2(G)
  • Tries
    • Try
      • K(I);S_FLIGHT
      • Threat
        • QAB1(G)
      • Vars
        • K(c);N_SPINR(b),P-FLIGHT::QAR1(G)
        • S(e);N_GUARD::QAR2(G)
      • Refutation
        • S(e);
    • Try
      • S(H);CHECK,XP(d)
      • Vars
        • K(c);N_SPINR(b),P-FLIGHT::QAR1(G)
      • Refutation
        • K(c);N_SPINR(b),P-FLIGHT
    • Try
      • B(C);CHECK,XR(b)
      • Refutation
        • S(a);P_SPINS(a)
  • Actual
    • S(B);
    • Vars
      • S(e);CHECK,SBLOCK::S(B)
      • S(e);CHECK,N_GUARD::QAR2(G)
      • S(e);CHECK,SBLOCK::S(H)
      • K(c);S_FLIGHT::S(H)
      • S(a);N_GUARD,XP(F)::B(C),XR(b)
      • S(a);N_GUARD::B(C),XR(b)
      • S(a);N_SPINR(b),OGATE,SBLOCK::P(A)
      • P(d);OGATE::QAB1(G)
      • P(d);OGATE::QAB1(G),XP(d)
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