MESON Chess Problem Database

Problem Display
PID: 167119 (b2bK3/3pN2p/Q2P3r/1p1PkB1p/6PB/4P3/3RpN2/2n5 w - - 0 1)

Novitski, Petr Adrinovich

Sachmatija, 2010

b2bK3/3pN2p/Q2P3r/1p1PkB1p/6PB/4P3/3RpN2/2n5

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd6
      • 2.Qa1#
    • 1...Rf6
      • 2.Bg3#
    • 1...Bxd5
      • 2.Rxd5#
    • 1...Sa2
      • 2.Sd3#
    • 1...Sb3
      • 2.Sd3#
    • 1...Sd3
      • 2.Sxd3#
    • 1...hxg4
      • 2.Sxg4#
  • Tries
    • 1.Se4?
      • threat
        • 2.Bg3#
        • 2.Qa1#
      • 1...e1Q
        • 2.Qa1#
      • 1...e1B
        • 2.Qa1#
      • 1...Ba5
        • 2.Bg3#
      • 1...Bb6
        • 2.Bg3#
      • 1...Sa2
        • 2.Bg3#
      • 1...Sb3
        • 2.Bg3#
      • 1...Sd3!
    • 1.g5?
      • threat
        • 2.Bg3#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Bxe7!
  • Keys
    • 1.Kf7!
      • threat
        • 2.Bg3#
      • 1...Rf6+
        • 2.Bxf6#
      • 1...Bxd5+
        • 2.Rxd5#
      • 1...Sd3
        • 2.Sxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • R(f);SBLOCK,XP(I)::QAB(H)
    • R(f);SBLOCK::B(E)
    • B(i);OGATE,XP(F)::R1(A),XB(i)
    • S(a);N_GUARD::S(B)
    • S(a);N_GUARD::S(B),XS(a)
    • P(e);XP(D)::S(B),XP(e)
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAB(H)
        • B(j);::B(E)
        • S(a);::B(E)
      • Refutation
        • S(a);
    • Try
      • P(D);
      • Threat
        • B(E)
      • Vars
        • S(a);N_GUARD::S(B),XS(a)
      • Refutation
        • B(j);XS(J)
  • Actual
    • K(K);S_FLIGHT
    • Threat
      • B(E)
    • Vars
      • R(f);CHECK,N_GUARD::B(E),XR(f)
      • B(i);CHECK,OGATE,XP(F)::R1(A),XB(i)
      • S(a);N_GUARD::S(B),XS(a)
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