MESON Chess Problem Database

Problem Display
PID: 37657 (3q4/N5P1/3R2p1/5p1R/r1kPp3/2N5/1Q1pKn2/n1rB2B1 w - - 0 1)

Erokhin, Vladimir Alekseevich

Gorbatenko, Yuri Grigorevich

1st HM., Na Smenu!, 1994

3q4/N5P1/3R2p1/5p1R/r1kPp3/2N5/1Q1pKn2/n1rB2B1

#2

10 + 10

3705 Album Russia (1992-1994) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Qh4
      • 2.g8Q#
      • 2.g8B#
    • 1...Qg5
      • 2.g8Q#
      • 2.g8B#
    • 1...Qb6
      • 2.g8Q#
      • 2.g8B#
    • 1...Rxc3
      • 2.Qb5#
    • 1...Sb3
      • 2.Qxb3#
    • 1...Sxd1
      • 2.Rc6#
    • 1...Sh1
      • 2.Rc6#
    • 1...Sh3
      • 2.Rc6#
    • 1...Sg4
      • 2.Rc6#
    • 1...f4
      • 2.Rc5#
  • Tries
    • 1.Bb3+?
      • 1...Kb4
        • 2.Sc6#
      • 1...Sxb3!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Se3#
      • 1...Sxd1
        • 2.Qb5#
      • 1...Rc3
        • 2.Qxc3#
      • 1...Qg5
        • 2.Sb6#
      • 1...Ra3
        • 2.Qb4#
      • 1...Sc2
        • 2.Qc3#
      • 1...Sb3
        • 2.Bxb3#
      • 1...Sg4
        • 2.Qb5#
      • 1...e3
        • 2.Sxe3#
      • 1...f4
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • Q(j);N_GUARD::P=Q
    • R(b);SBLOCK,XS(E)::QAB1(C)
    • S(a);N_GUARD::QAB1(C),XS(a)
    • S(d);XB(A)::R(H)
    • S(d);::R(H)
    • P(h);OGATE::R1(G)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • K(f);P-FLIGHT::S(I)
      • Refutation
        • S(a);XB(A)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • S(d);XB(A)::QAB1(C)
      • R(b);N_GUARD::QAR1(C),XR(b)
      • Q(j);N_GUARD::S(E)
      • R(e);N_GUARD::QAR1(C)
      • S(a);S_CUTR(b)::QAR1(C)
      • S(a);N_GUARD::B(A),XS(a)
      • S(d);::QAB1(C)
      • P(g);::S(E),XP(g)
      • P(h);::R(H)
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Developed and maintained by Brian Stephenson.
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