MESON Chess Problem Database

Problem Display
PID: 210159 (3R4/4pr2/8/1b3NPQ/B1N3P1/1PR5/3p4/2bk2K1 w - - 0 1)

Coello Alonso, Jose Antonio

Zaragoza, Luis

BCPS Website, 2020

3R4/4pr2/8/1b3NPQ/B1N3P1/1PR5/3p4/2bk2K1

#2

10 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Rxd2+?
      • 1...Ke1
        • 2.Rxc1#
        • 2.Re3#
        • 2.Qh4#
      • 1...Bxd2!
    • 1.b4+?
      • 1...Ke1
        • 2.Re3#
      • 1...Ke2
        • 2.Re3#
      • 1...Bxa4!
  • Keys
    • 1.Kf2!
      • threat
        • 2.Se3#
        • 2.Qh1#
      • 1...Rxf5+
        • 2.gxf5#
      • 1...Bxc4
        • 2.bxc4#
      • 1...Rh7
        • 2.Sce3#
        • 2.Sfe3#
      • 1...Bc6
        • 2.Se3#

This is a version of 210158

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(J);CHECK,XP(c)
      • Refutation
        • B(a);XR(J)
    • Try
      • P(B);CHECK
      • Vars
        • K(b);N_SPINP(c),P-FLIGHT::R(C)
        • K(b);N_SPINP(c),S_FLIGHT::R1(C)
      • Refutation
        • B(d);XB(D)
  • Actual
    • K(A);P_SPINS(G),S_FLIGHT
    • Threat
      • DUALS(2)
    • Vars
      • R(f);CHECK,OGATE,XS(G)::QAB(I)+P(F),XR(f)
      • B(d);OGATE,XS(E)::B(D)+P(B),XB(d)
      • B(d);::S(E)
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