MESON Chess Problem Database

Problem Display
PID: 215699 (8/6n1/3p1R2/2p3p1/2Pk1b2/1K3P2/5P2/4R2Q w - - 0 1)

Laws, Benjamin Glover

Reclam-Sammlung I, 1881

8/6n1/3p1R2/2p3p1/2Pk1b2/1K3P2/5P2/4R2Q

#2

7 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Rxd6#
    • 1...Bd2
      • 2.Rxd6#
    • 1...Be5
      • 2.Rd1#
  • Tries
    • 1.Rf5?
      • threat
        • 2.Rd5#
      • 1...Kd3
        • 2.Rd5#
      • 1...Be5
        • 2.Rd1#
      • 1...d5
        • 2.Rxd5#
      • 1...Sxf5!
  • Keys
    • 1.Re5!
      • threat
        • 2.Rd5#
      • 1...Kd3
        • 2.Rxd6#
      • 1...Kxe5
        • 2.Qa1#
      • 1...Bxe5
        • 2.Qd1#
      • 1...dxe5
        • 2.Rd6#
      • 1...d5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(b);N_GUARD::R(G),XP(e)
    • B(b);N_GUARD,SBLOCK::R(A)
  • Tries
    • Try
      • R(G);
      • Threat
        • R1(G)
      • Vars
        • K(a);P-FLIGHT::R(G)
        • B(b);N_GUARD::R(A)
        • P(e);::R1(G),XP(e)
      • Refutation
        • S(f);XR(G)
  • Actual
    • R(A);
    • Threat
      • R1(A)
    • Vars
      • K(a);P-FLIGHT::R(G),XP(e)
      • K(a);S_FLIGHT,XR(A)::QAB(B)
      • B(b);N_GUARD,SBLOCK,XR(A)::QAR(B)
      • P(e);SBLOCK,XR(A)::R(G)
      • P(e);::R1(A),XP(e)
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