MESON Chess Problem Database

Problem Display
PID: 15348 (Q4R2/2p3n1/4pN2/p5K1/4B1p1/6kp/2n1RN1b/r7 w - - 0 1)

Pilchenko, Viacheslav Karlovich

1st Prize, Szachy, 1982

Q4R2/2p3n1/4pN2/p5K1/4B1p1/6kp/2n1RN1b/r7

#2

7 + 10

3752 FIDE Album (1980-1982) 1988

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Sxh1#
    • 1...Ra2
      • 2.Sh1#
    • 1...Ra3
      • 2.Sh1#
    • 1...Ra4
      • 2.Sh1#
    • 1...Bg1
      • 2.Sh1#
    • 1...Se1
      • 2.Sh1#
    • 1...Sf5
      • 2.Sh5#
    • 1...Sh5
      • 2.Sxh5#
    • 1...Se8
      • 2.Sh5#
  • Tries
    • 1.Bh1?
      • threat
        • 2.S2e4#
        • 2.S6e4#
      • 1...Rxh1
        • 2.Sxh1#
      • 1...Bg1
        • 2.S2e4#
      • 1...Ra4!
    • 1.Bg2?
      • threat
        • 2.S2e4#
      • 1...hxg2
        • 2.S6e4#
      • 1...Ra4
        • 2.Sh1#
      • 1...Bg1!
    • 1.Qd5?
      • threat
        • 2.Qe5#
      • 1...Sh5
        • 2.Sxh5#
      • 1...e5
        • 2.Qxe5#
      • 1...exd5!
  • Keys
    • 1.Bf3!
      • threat
        • 2.S6e4#
      • 1...gxf3
        • 2.S2e4#
      • 1...Bg1
        • 2.Sh1#
      • 1...Ra4
        • 2.Sh1#
      • 1...Sf5
        • 2.Sh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(a);N_GUARD::S(B),XR(a)
    • R(a);N_GUARD::S(B)
    • B(c);S_CUTR(a)::S(B)
    • S(b);S_CUTR(a)::S(B)
    • S(j);N_GUARD::S(E)
    • S(j);N_GUARD::S(E),XS(j)
  • Tries
    • Try
      • B(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XB(C)::S(B),XR(a)
        • B(c);::S(B)
      • Refutation
        • R(a);
    • Try
      • B(C);
      • Threat
        • S(B)
      • Vars
        • P(e);SBLOCK,XB(C)::S(E)
        • R(a);N_GUARD::S(B)
      • Refutation
        • B(c);
    • Try
      • Q(F);
      • Threat
        • QAB(F)
      • Vars
        • S(j);N_GUARD::S(E),XS(j)
        • P(h);::QAB(F),XP(h)
      • Refutation
        • P(h);XQ(F)
  • Actual
    • B(C);
    • Threat
      • S(E)
    • Vars
      • P(f);SBLOCK,XB(C)::S(B)
      • B(c);S_CUTR(a)::S(B)
      • R(a);N_GUARD::S(B)
      • S(j);N_GUARD::S(E)
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