MESON Chess Problem Database

Problem Display
PID: 157508 (3r4/R6N/p1P2p1p/N2k2b1/3P4/4pK1B/1B5Q/8 w - - 0 1)

Butler, Henry William

The Chess Player's Chronicle (Sampson), 0000

3r4/R6N/p1P2p1p/N2k2b1/3P4/4pK1B/1B5Q/8

#2

9 + 7

15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Rd7
      • 2.Rxd7#
    • 1...Ra8
      • 2.Rd7#
    • 1...Rb8
      • 2.Rd7#
    • 1...Rc8
      • 2.Rd7#
    • 1...Re8
      • 2.Rd7#
    • 1...Rf8
      • 2.Rd7#
    • 1...Rg8
      • 2.Rd7#
    • 1...Rh8
      • 2.Rd7#
    • 1...f5
      • 2.Qe5#
  • Tries
    • 1.Qc7?
      • threat
        • 2.Qxd8#
      • 1...f5
        • 2.Qe5#
      • 1...Rd7
        • 2.Qxd7#
      • 1...Ra8
        • 2.Qd7#
      • 1...Rb8
        • 2.Qd7#
      • 1...Rc8
        • 2.Qd7#
      • 1...Re8
        • 2.Qd7#
      • 1...Rf8
        • 2.Qd7#
      • 1...Rg8
        • 2.Qd7#
      • 1...Rh8
        • 2.Qd7#
      • 1...Bf4
        • 2.Sxf6#
      • 1...Rd6!
    • 1.Qc2?
      • threat
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...f5!
  • Keys
    • 1.Qb8!
      • threat
        • 2.Qxd8#
      • 1...Rxb8
        • 2.Rd7#
      • 1...f5
        • 2.Qe5#
      • 1...Rd6
        • 2.Qb3#
      • 1...Rd7
        • 2.Rxd7#
      • 1...Rc8
        • 2.Rd7#
      • 1...Re8
        • 2.Rd7#
      • 1...Rf8
        • 2.Rd7#
      • 1...Rg8
        • 2.Rd7#
      • 1...Rh8
        • 2.Rd7#
      • 1...Bf4
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(g);N_GUARD::R(H),XR(g)
    • R(g);N_GUARD::R(H)
    • P(e);N_GUARD::QAR1(B)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR(B),XR(g)
      • Vars
        • P(e);N_GUARD::QAR1(B)
        • R(g);N_GUARD::QAR2(B),XR(g)
        • R(g);N_GUARD::QAR2(B)
        • B(c);N_GUARD::S(I),XP(e)
      • Refutation
        • R(g);
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(b);P-FLIGHT::QAB1(B)
      • Refutation
        • P(e);
  • Actual
    • Q(B);
    • Threat
      • QAR(B),XR(g)
    • Vars
      • R(g);N_GUARD,XQ(B)::R(H)
      • P(e);N_GUARD::QAR1(B)
      • R(g);SBLOCK::QAB(B)
      • R(g);N_GUARD::R(H),XR(g)
      • R(g);N_GUARD::R(H)
      • B(c);N_GUARD::S(I),XP(e)
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