MESON Chess Problem Database

Problem Display
PID: 45045 (1qn5/1B6/nP1Rp2p/Kpk4r/p7/5PQp/3N4/8 w - - 0 1)

Planck, Charles

HM., Sheffield Independent, 1886

(First published on Sat Apr 3 1886)

1qn5/1B6/nP1Rp2p/Kpk4r/p7/5PQp/3N4/8

#2

7 + 10

3316 Chess Problem Text Book 1887
15351 SCPF/BCPS Black Books 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rh4
      • 2.Qe5#
    • 1...Re5
      • 2.Qxe5#
    • 1...Sxd6
      • 2.Qf2#
      • 2.Qg1#
    • 1...e5
      • 2.Rd5#
  • Tries
    • 1.Qf4?
      • threat
        • 2.Qd4#
      • 1...Sxd6
        • 2.Qe3#
      • 1...e5
        • 2.Rd5#
      • 1...Rh4
        • 2.Qe5#
      • 1...Rd5
        • 2.Rc6#
      • 1...Qxd6!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qd4#
      • 1...Kxd6
        • 2.Se4#
      • 1...Qxd6
        • 2.Qc3#
      • 1...Sxd6
        • 2.Qg1#
      • 1...Rh4
        • 2.Qe5#
      • 1...Rd5
        • 2.Rc6#
      • 1...Re5
        • 2.Qxe5#
      • 1...e5
        • 2.Rd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(e);N_GUARD::QAR2(C)
    • R(e);N_GUARD::QAR2(C),XR(e)
    • P(g);N_GUARD,S_CUTR(e)::R1(F)
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • S(j);SBLOCK,XR(F)::QAB(C)
        • P(g);N_GUARD,S_CUTR(e)::R1(F)
        • R(e);N_GUARD::QAR2(C)
        • R(e);SBLOCK::R1(F)
      • Refutation
        • Q(i);XR(F)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(d);S_FLIGHT,XR(F)::S(A)
      • Q(i);SBLOCK,XR(F)::QAR2(C)
      • S(j);SBLOCK,XR(F)::QAB(C)
      • R(e);N_GUARD::QAR2(C)
      • R(e);SBLOCK::R1(F)
      • R(e);N_GUARD::QAR2(C),XR(e)
      • P(g);N_GUARD,S_CUTR(e)::R1(F)
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