MESON Chess Problem Database

Problem Display
PID: 184901 (1N1q4/3rp2n/7P/p2Pk3/3b1R1p/4NK2/8/B5Q1 w - - 0 1)

Dobbs, Gilbert S

Chess Weekly, 1908

1N1q4/3rp2n/7P/p2Pk3/3b1R1p/4NK2/8/B5Q1

#2

8 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Bxd4#
      • 2.Rf5#
  • Tries
    • 1.Re4+?
      • 1...Kf6
        • 2.Qg7#
      • 1...Kd6!
  • Keys
    • 1.Rf6!
      • threat
        • 2.Re6#
      • 1...Sg5+
        • 2.Qxg5#
      • 1...Kxf6
        • 2.Qg7#
      • 1...Rxd5
        • 2.Sg4#
      • 1...Bxa1
        • 2.Qxa1#
      • 1...Sxf6
        • 2.Qh2#
      • 1...exf6
        • 2.Qh2#
      • 1...Bb2
        • 2.Bxb2#
      • 1...Bc3
        • 2.Bxc3#
      • 1...e6
        • 2.Rxe6#
      • 1...Qb6
        • 2.Sxd7#
      • 1...Qf8
        • 2.Sxd7#
      • 1...Qg8
        • 2.Sxd7#
      • 1...Rd6
        • 2.Rf5#
      • 1...Sf8
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB1(B)
      • Refutation
        • K(d);N_SPINB(a),S_FLIGHT
  • Actual
    • R(E);
    • Threat
      • R1(E)
    • Vars
      • S(g);CHECK,N_GUARD::QAR2(B),XS(g)
      • K(d);OGATEB,S_FLIGHT,XR(E)::QAB1(B)
      • R(e);SBLOCK,XP(F)::S(C)
      • B(a);N_SPINB(a),OGATE,XB(A)::QAB(B),XB(a)
      • S(g);SBLOCK,XR(E)::QAB(B)
      • P(f);SBLOCK,XR(E)::QAB(B)
      • B(a);OGATEB::B(A),XB(a)
      • P(f);::R1(E),XP(f)
      • Q(h);N_GUARD::S(H),XR(e)
      • Q(h);N_GUARD,P_PINR(E)::S(H),XR(e)
      • R(e);SBLOCK::R1(E)
      • S(g);N_GUARD::QAR2(B)
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