MESON Chess Problem Database

Problem Display
PID: 224664 (7Q/8/1K1P1N2/1p2b3/R1pkb3/R3p3/2B5/5n2 w - - 0 1)

Cleveland, BF

Smith, JW

The Sunny South, 1887

(First published on Sat Mar 5 1887)

7Q/8/1K1P1N2/1p2b3/R1pkb3/R3p3/2B5/5n2

#2

7 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bh1
      • 2.Rd3#
    • 1...Bg2
      • 2.Rd3#
    • 1...Bd3
      • 2.Rxd3#
    • 1...Bf3
      • 2.Rd3#
    • 1...Bd5
      • 2.Rd3#
    • 1...Bc6
      • 2.Rd3#
    • 1...Bb7
      • 2.Rd3#
    • 1...Ba8
      • 2.Rd3#
  • Tries
    • 1.Qh4?
      • threat
        • 2.Rd3#
        • 2.Qxe4#
      • 1...Bxd6
        • 2.Qxe4#
      • 1...Bxf6
        • 2.Qxe4#
      • 1...bxa4
        • 2.Qxe4#
      • 1...Bh2
        • 2.Qxe4#
      • 1...Bg3
        • 2.Qxe4#
      • 1...Sd2
        • 2.Rd3#
      • 1...Sg3
        • 2.Rd3#
      • 1...b4
        • 2.Qxe4#
      • 1...Bf4!
    • 1.Qc8?
      • threat
        • 2.Qc5#
      • 1...Bc6
        • 2.Rd3#
      • 1...Bxd6!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qxe4#
      • 1...Bxh1
        • 2.Rd3#
      • 1...Bxc2
        • 2.Qd5#
      • 1...Bg2
        • 2.Rd3#
      • 1...Bd3
        • 2.Rxd3#
        • 2.Qd5#
      • 1...Bf3
        • 2.Rd3#
      • 1...Bd5
        • 2.Rd3#
        • 2.Qxd5#
      • 1...Bf5
        • 2.Qd5#
      • 1...Bc6
        • 2.Rd3#
      • 1...Bg6
        • 2.Qd5#
      • 1...Bb7
        • 2.Rd3#
      • 1...Bh7
        • 2.Qd5#
      • 1...Ba8
        • 2.Rd3#
      • 1...Sd2
        • 2.Qa1#
      • 1...Sg3
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • B(e);N_GUARD::R1(B)
    • B(e);N_GUARD::R1(B),XB(e)
  • Tries
    • Try
      • Q(G);P_PINB(e)
      • Threat
        • DUALS(2)
      • Vars
        • B(g);XP(E)::QAR1(G),XB(e)
        • B(g);XS(F)::QAR1(G),XB(e)
        • P(f);N_SPINP(c),XR(C)::QAR1(G),XB(e)
        • B(g);::QAR1(G),XB(e)
        • S(a);::R1(B)
        • P(f);N_SPINP(c)::QAR1(G),XB(e)
      • Refutation
        • B(g);N_SPINB(e)
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • B(e);N_GUARD::R1(B)
      • Refutation
        • B(g);XP(E)
  • Actual
    • Q(G);
    • Threat
      • QAR1(G),XB(e)
    • Vars
      • B(e);N_GUARD,XQ(G)::R1(B)
      • B(e);OGATE,XB(A)::QAR1(G)
      • B(e);N_GUARD::R1(B)
      • B(e);OGATE::QAR1(G)
      • S(a);OGATE::QAB(G)
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