MESON Chess Problem Database

Problem Display
PID: 145891 (6K1/1Q1bb3/4kpN1/2P2p2/1p1p4/1r2r1R1/2P5/8 w - - 0 1)

Weiss, Berthold

Good Companions (December), 1917

6K1/1Q1bb3/4kpN1/2P2p2/1p1p4/1r2r1R1/2P5/8

#2

6 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sf4#
    • 1...d3
      • 2.Rxe3#
  • Tries
    • 1.Qc6+?
      • 1...Bd6
        • 2.Qxd6#
      • 1...Bxc6!
  • Keys
    • 1.c4!
      • threat
        • 2.Qd5#
      • 1...bxc4 ep
        • 2.Qxb3#
      • 1...dxc4 ep
        • 2.Rxe3#
      • 1...Bc6
        • 2.Qxe7#
      • 1...Re5
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(b);SBLOCK::S(D)
    • P(d);N_GUARD,S_CUTR(a)::R(B),XR(b)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • B(i);N_GUARD,P_SPINB(i)::QAR1(E),XB(i)
      • Refutation
        • B(h);XQ(E)
  • Actual
    • P(A);
    • Threat
      • QAB1(E)
    • Vars
      • P(c);EP,OGATE,XP(A)::QAB(E),XR(a)
      • P(d);EP,N_GUARD,S_CUTR(a),XP(A)::R(B),XR(b)
      • B(h);OGATE::QAR1(E),XB(i)
      • R(b);SBLOCK::S(D)
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