MESON Chess Problem Database

Problem Display
PID: 174519 (2R5/1K2p3/1p3pN1/2Bk1Pp1/3n4/5R2/1n1N4/5B2 w - - 0 1)

Volchek, Viktor Fedorovich

4th HM., Wola Gulowska, 2001

2R5/1K2p3/1p3pN1/2Bk1Pp1/3n4/5R2/1n1N4/5B2

#2

8 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Bc4#
    • 1...Sa4
      • 2.Bc4#
    • 1...Sc4
      • 2.Bxc4#
    • 1...bxc5
      • 2.Rd8#
    • 1...e5
      • 2.Se7#
  • Tries
    • 1.Rc3?
      • threat
        • 2.Rd8#
      • 1...Sc4
        • 2.Bxc4#
      • 1...Sb5
        • 2.Bg2#
      • 1...Sc6
        • 2.Bg2#
      • 1...Se6
        • 2.Bg2#
      • 1...Sxf5!
    • 1.Rd3?
      • threat
        • 2.Bg2#
        • 2.Rxd4#
      • 1...bxc5
        • 2.Rd8#
      • 1...e5
        • 2.Se7#
      • 1...Sxd3!
    • 1.Re3?
      • threat
        • 2.Sxe7#
      • 1...Sxf5
        • 2.Bg2#
      • 1...bxc5
        • 2.Rd8#
      • 1...e5
        • 2.Se7#
      • 1...e6
        • 2.Se7#
      • 1...Sc6!
  • Keys
    • 1.Bg2!
      • threat
        • 2.Rd3#
      • 1...Sxf3
        • 2.Bxf3#
      • 1...Sxf5
        • 2.Re3#
      • 1...bxc5
        • 2.Rd8#
      • 1...Sc6
        • 2.Rc3#
      • 1...Sd3
        • 2.Rxd3#
      • 1...e5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::B(A)
    • S(a);N_GUARD::B(A),XS(a)
    • P(e);SBLOCK,XB(D)::R(H)
    • P(g);SBLOCK::S(F)
  • Tries
    • Try
      • R(C);
      • Threat
        • R(H)
      • Vars
        • S(a);N_GUARD::B(A),XS(a)
        • S(b);N_GUARD::B(A)
      • Refutation
        • S(b);XP(E)
    • Try
      • R(C);P_PINS(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);SBLOCK,XB(D)::R(H)
        • P(g);SBLOCK::S(F)
      • Refutation
        • S(a);N_SPINS(b),XR(C)
    • Try
      • R(C);
      • Threat
        • S(F),XP(g)
      • Vars
        • S(b);N_GUARD,XP(E)::B(A)
        • P(e);SBLOCK,XB(D)::R(H)
        • P(g);::S(F)
      • Refutation
        • S(b);
  • Actual
    • B(A);
    • Threat
      • B(A)+R(C)
    • Vars
      • S(b);OGATE,P_SPINS(b),XR(C)::B(A),XS(b)
      • S(b);N_GUARD,XP(E)::B(A)+R(C)
      • P(e);SBLOCK,XB(D)::R(H)
      • S(b);N_GUARD::B(A)+R(C)
      • S(a);::B(A)+R(C),XS(a)
      • P(g);SBLOCK::S(F)
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