MESON Chess Problem Database

Problem Display
PID: 169841 (2RK4/8/pp2N3/3krB2/1RNr4/3P2n1/5n1b/6q1 w - - 0 1)

Ebend, Tibor

Die Schwalbe, 1945

2RK4/8/pp2N3/3krB2/1RNr4/3P2n1/5n1b/6q1

#2

7 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sfe4
      • 2.Sf4#
    • 1...a5
      • 2.Rb5#
    • 1...b5
      • 2.Rc5#
  • Tries
    • 1.Se3+?
      • 1...Kd6
        • 2.Rxb6#
      • 1...Rxe3!
  • Keys
    • 1.Rxb6!
      • threat
        • 2.Rd6#
        • 2.Rc5#
      • 1...Rxc4
        • 2.dxc4#
      • 1...Rxe6
        • 2.Bxe6#
      • 1...Sxd3
        • 2.Rd6#
      • 1...Sxf5
        • 2.Rc5#
      • 1...Sfe4
        • 2.Sf4#
      • 1...Sge4
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • S(b);S_CUTR(e)::S(E)
    • P(h);N_GUARD::R(B)
    • P(i);N_GUARD::R1(F)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(f);P-FLIGHT::R(B),XP(i)
      • Refutation
        • R(g);XS(C)
  • Actual
    • R(B);XP(i)
    • Threat
      • DUALS(2)
    • Vars
      • R(e);OGATE,XS(C)::P(A),XR(e)
      • R(g);OGATE,XS(E)::B(D),XR(g)
      • S(b);XP(A)::R1(B)
      • S(d);XB(D)::R1(F)
      • S(b);S_CUTR(e)::S(E)
      • S(d);S_CUTR(g)::S(C)
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