MESON Chess Problem Database

Problem Display
PID: 92226 (5r2/1b3r1p/q5pK/6P1/7Q/2N1B2B/6P1/5k2 w - - 0 1)

Galitzky, Aleksandr Vasilevich

Shakhmatny Zhurnal, 1900

5r2/1b3r1p/q5pK/6P1/7Q/2N1B2B/6P1/5k2

#2

7 + 7

6490 yacpdb 2009
14666 Aleksandr Galitzky - Shakhmaty Geine (Vol 1) 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.gxf3#
    • 1...Bf3
      • 2.Qf2#
      • 2.gxf3#
    • 1...Bc8
      • 2.g4#
  • Tries
    • 1.Bg4?
      • threat
        • 2.Qh1#
      • 1...Kxg2
        • 2.Qh3#
      • 1...Bxg2!
    • 1.Bf5?
      • threat
        • 2.Qf2#
        • 2.Qh1#
      • 1...Kxg2
        • 2.Qh3#
      • 1...Rxf5
        • 2.Qh1#
      • 1...Bxg2
        • 2.Qf2#
      • 1...Qe2
        • 2.Qh1#
      • 1...Qa2
        • 2.Qh1#
      • 1...gxf5+!
    • 1.Be6?
      • threat
        • 2.Qh1#
      • 1...Kxg2
        • 2.Qh3#
      • 1...Bxg2!
    • 1.Bd7?
      • threat
        • 2.Qh1#
      • 1...Kxg2
        • 2.Qh3#
      • 1...Bxg2!
  • Keys
    • 1.Bc8!
      • threat
        • 2.Qh1#
      • 1...Kxg2
        • 2.Qh3#
      • 1...Bxg2
        • 2.Bxa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(e);OGATE::B(D)+P(A),XR(e)
    • B(d);N_GUARD::B(D)+P(A)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR2(E)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(A)::QAB1(E)
      • Refutation
        • B(d);XP(A)
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(A)::QAB1(E)
        • R(e);XB(D)::QAR2(E)
        • B(d);XP(A)::QAR1(E)
        • Q(b);::QAR2(E)
      • Refutation
        • P(c);CHECK,XB(D)
    • Try
      • B(D);
      • Threat
        • QAR2(E)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(A)::QAB1(E)
      • Refutation
        • B(d);XP(A)
    • Try
      • B(D);
      • Threat
        • QAR2(E)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(A)::QAB1(E)
      • Refutation
        • B(d);XP(A)
  • Actual
    • B(D);
    • Threat
      • QAR2(E)
    • Vars
      • K(a);OGATEB,S_FLIGHT,XP(A)::QAB1(E)
      • B(d);OGATE,SBLOCK,XP(A)::B(D),XQ(b)
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