MESON Chess Problem Database

Problem Display
PID: 218533 (8/4N3/6R1/4kp2/QN2b2P/1p5R/5K2/8 w - - 0 1)

Anonymous

The Chess Player's Chronicle (Sampson), 1881

(First published on Tue Aug 2 1881)

8/4N3/6R1/4kp2/QN2b2P/1p5R/5K2/8

#2

7 + 4

6490 yacpdb 2020
15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Sd3#
    • 1...Bb1
      • 2.Sbc6#
    • 1...Bh1
      • 2.Sd3#
    • 1...Bc2
      • 2.Sbc6#
    • 1...Bg2
      • 2.Sd3#
    • 1...Bd3
      • 2.Sxd3#
      • 2.Sbc6#
    • 1...Bf3
      • 2.Sd3#
    • 1...Bd5
      • 2.Sd3#
    • 1...Bc6
      • 2.Sd3#
      • 2.Sbxc6#
    • 1...Bb7
      • 2.Sd3#
    • 1...Ba8
      • 2.Sd3#
  • Tries
    • 1.Sbc6+?
      • 1...Kf4
        • 2.Sd5#
        • 2.Rf3#
      • 1...Bxc6!
    • 1.Sec6+?
      • 1...Kf4
        • 2.Sd3#
        • 2.Sd5#
      • 1...Bxc6!
    • 1.Re3?
      • threat
        • 2.Sd3#
      • 1...Kf4
        • 2.Sd3#
      • 1...Kd4!
  • Keys
    • 1.Rxb3!
      • 1...Kd4
        • 2.Sd3#
      • 1...Kf4
        • 2.Sd3#
      • 1...Bb1
        • 2.Sbc6#
      • 1...Bh1
        • 2.Sd3#
      • 1...Bc2
        • 2.Sbc6#
      • 1...Bg2
        • 2.Sd3#
      • 1...Bd3
        • 2.Sxd3#
        • 2.Sbc6#
      • 1...Bf3
        • 2.Sd3#
      • 1...Bd5
        • 2.Sd3#
      • 1...Bc6
        • 2.Sd3#
        • 2.Sbxc6#
      • 1...Bb7
        • 2.Sd3#
      • 1...Ba8
        • 2.Sd3#
      • 1...f4
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::S(D)
    • B(b);N_GUARD::S(D)
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • B(b);XS(D)
    • Try
      • S(G);CHECK
      • Refutation
        • B(b);XS(G)
    • Try
      • R(B);P_PINB(b)
      • Threat
        • S(D)
      • Vars
        • K(c);N_SPINB(b),S_FLIGHT::S(D)
      • Refutation
        • K(c);N_SPINB(b),S_FLIGHT
  • Actual
    • R(B);XP(a)
    • Vars
      • K(c);S_FLIGHT::QAR(C)+S(D)
      • K(c);S_FLIGHT::S(D)
      • B(b);N_GUARD::S(D)
      • P(d);SBLOCK::QAB(C)
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