MESON Chess Problem Database

Problem Display
PID: 61167 (3Q4/5K2/8/8/N7/2RB3N/3k1P2/2nbR3 w - - 0 1)

Ferron de la Fuente, Ernesto

Problem Observer, 2005

3Q4/5K2/8/8/N7/2RB3N/3k1P2/2nbR3

#2

8 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Bc2+?
      • 1...Kxe1
        • 2.Qxd1#
      • 1...Sd3!
    • 1.Be2+?
      • 1...Kxe1
        • 2.Qxd1#
      • 1...Sd3!
    • 1.Rc2+?
      • 1...Kxe1
        • 2.Qa5#
      • 1...Bxc2!
  • Keys
    • 1.Rxc1!
      • threat
        • 2.Rcxd1#
        • 2.Rexd1#
      • 1...Bb3+
        • 2.Bc4#
      • 1...Bh5+
        • 2.Bg6#
      • 1...Kxc1
        • 2.Qg5#
      • 1...Kxe1
        • 2.Qa5#
      • 1...Bxa4
        • 2.Bb5#
      • 1...Bc2
        • 2.Bxc2#
      • 1...Be2
        • 2.Bxe2#
      • 1...Bf3
        • 2.Be4#
      • 1...Bg4
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT,XR(A)::QAR1(H),XB(b)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • B(D);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT,XR(A)::QAR1(H),XB(b)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • R(C);CHECK
      • Vars
        • K(c);S_FLIGHT,XR(A)::QAB(H)
      • Refutation
        • B(b);XR(C)
  • Actual
    • R(C);XS(a)
    • Threat
      • DUALS(2)
    • Vars
      • B(b);CHECK::QAR(H)+B(D)
      • K(c);P_SPINB(b),S_FLIGHT,XR(C)::QAB(H)
      • K(c);P_SPINB(b),S_FLIGHT,XR(A)::QAB(H)
      • B(b);XS(F)::QAR(H)+B(D)
      • B(b);::QAR(H)+B(D),XB(b)
      • B(b);::QAR(H)+B(D)
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