MESON Chess Problem Database

Problem Display
PID: 42555 (K2B4/p2R3p/7k/1pppN2P/1p6/1bR2B2/rr4P1/Q7 w - - 0 1)

van Dooren, Rene

Problemas, 1985

K2B4/p2R3p/7k/1pppN2P/1p6/1bR2B2/rr4P1/Q7

#2

9 + 10

3748 FIDE Album (1983-1985) 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Ra6
      • 2.Qxa6#
    • 1...Bc2
      • 2.Qc1#
  • Tries
    • 1.Be4?
      • threat
        • 2.Rxh7#
      • 1...Kxh5
        • 2.Rh3#
        • 2.Rxh7#
        • 2.Qh1#
      • 1...dxe4!
    • 1.Rc2?
      • threat
        • 2.Qc1#
      • 1...Rxc2
        • 2.Sf7#
      • 1...Rb1
        • 2.Sf7#
      • 1...Rxa1!
  • Keys
    • 1.Rxc5!
      • threat
        • 2.Rc6#
      • 1...Rxg2
        • 2.Sf7#
      • 1...Ra6
        • 2.Qxa6#
      • 1...Rc2
        • 2.Sf7#
      • 1...Bc2
        • 2.Qc1#
      • 1...d4
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);OGATE::QAB1(A),XR(a)
    • B(c);S_CUTR(b)::QAB(A)
  • Tries
    • Try
      • B(D);
      • Threat
        • R1(G),XP(j)
      • Refutation
        • P(g);XB(D)
    • Try
      • R(C);
      • Threat
        • QAB(A)
      • Vars
        • R(b);XR(C)::S(E)
        • R(b);::S(E)
      • Refutation
        • R(a);XQ(A)
  • Actual
    • R(C);XP(f)
    • Threat
      • R(C)
    • Vars
      • R(b);XP(B)::S(E)
      • R(a);OGATE::QAB1(A),XR(a)
      • R(b);::S(E)
      • B(c);S_CUTR(b)::QAB(A)
      • P(g);::S(E)
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