MESON Chess Problem Database

Problem Display
PID: 224438 (BBK5/8/5p2/N7/4R1P1/5kpb/2p1p1R1/4nrn1 w - - 0 1)

Anonymous

Wilkes-Barre Record, 1888

(First published on Thu Nov 22 1888)

BBK5/8/5p2/N7/4R1P1/5kpb/2p1p1R1/4nrn1

#2

7 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxg2
      • 2.Rxe2#
    • 1...Rf2
      • 2.Rxg3#
    • 1...Bxg4+
      • 2.Re6#
  • Tries
    • 1.Ba7?
      • threat
        • 2.Ra4#
        • 2.Rb4#
        • 2.Rc4#
      • 1...c1Q+
        • 2.Rc4#
      • 1...c1R+
        • 2.Rc4#
      • 1...Kxg2
        • 2.Rxe2#
      • 1...Bxg4+!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Rd4#
        • 2.Rf4#
      • 1...Bxg4+
        • 2.Re6#
      • 1...Kxg2
        • 2.Rxe2#
      • 1...Bxg2
        • 2.Rf4#
      • 1...Sxg2
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(f);S_FLIGHT,XR(A)::B(E)+R(B),DCHECK,XP(e)
    • R(b);SBLOCK::R1(A),XP(g)
    • B(h);CHECK,SBLOCK,XP(C)::B(E)+R(B)
  • Tries
    • Try
      • B(F);
      • Threat
        • DUALS(3)
      • Vars
        • P(d);CHECK::B(E)+R(B)
        • K(f);S_FLIGHT,XR(A)::B(E)+R(B),DCHECK,XP(e)
      • Refutation
        • B(h);CHECK,XP(C)
  • Actual
    • S(D);
    • Threat
      • DUALS(2)
    • Vars
      • B(h);CHECK,SBLOCK,XP(C)::B(E)+R(B)
      • K(f);S_FLIGHT,XR(A)::B(E)+R(B),DCHECK,XP(e)
      • B(h);N_PINP(C),SBLOCK,XR(A)::B(E)+R(B),DCHECK
      • S(a);SBLOCK,XR(A)::B(E)+R(B),DCHECK
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