MESON Chess Problem Database

Problem Display
PID: 180534 (2N1BK2/8/3R4/2kP3Q/1p1n4/1P1pp3/2P2P2/2R1NbB1 w - - 0 1)

Lider, Valentin Viktorovich

Revista Romana de Sah, 1976

2N1BK2/8/3R4/2kP3Q/1p1n4/1P1pp3/2P2P2/2R1NbB1

#2

12 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Sxd3#
    • 1...Bh3
      • 2.Sxd3#
    • 1...Sc6
      • 2.dxc6#
    • 1...Se6+
      • 2.dxe6#
    • 1...e2
      • 2.Sxd3#
  • Keys
    • 1.fxe3!
      • threat
        • 2.exd4#
      • 1...Se6+
        • 2.dxe6#
      • 1...Sxc2
        • 2.e4#
      • 1...Sxb3
        • 2.cxb3#
      • 1...Sc6
        • 2.dxc6#
      • 1...Se2
        • 2.Sxd3#
      • 1...Sf3
        • 2.cxd3#
      • 1...Sb5
        • 2.Rc6#
      • 1...Sf5
        • 2.cxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 3
  • Sets
    • B(a);N_GUARD::S(B),XP(b)
    • S(e);OGATE::QAR(H)+P(G),XS(e)
    • S(e);CHECK,OGATE::QAR(H)+P(G),XS(e)
    • P(c);S_CUTB(a)::S(B),XP(b)
  • Actual
    • P(E);XP(c)
    • Threat
      • P(E),XS(e)
    • Vars
      • S(e);CHECK,OGATE::QAR(H)+P(G),XS(e)
      • S(e);P_SPINS(e),XP(D)::B(C)+P(E)
      • S(e);OGATE,XP(F)::R(A)+P(D),XS(e)
      • S(e);OGATE::QAR(H)+P(G),XS(e)
      • S(e);S_CUTB(a)::S(B),XP(b)
      • S(e);N_GUARD::R(A)+P(D),XP(b)
      • S(e);N_GUARD,SBLOCK::R1(I)
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