MESON Chess Problem Database

Problem Display
PID: 143001 (Q7/1P3R1N/4P2p/4P3/6k1/7b/5K2/7R w - - 0 1)

Winter-Wood, Edward John

Lasker's Chess Magazine, 1905

Q7/1P3R1N/4P2p/4P3/6k1/7b/5K2/7R

#2

8 + 3

15254 EJWW Scrapbook 2011
14868 Pirnie Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Qg8#
    • 1...Bg2
      • 2.Qg8#
    • 1...h5
      • 2.Qa4#
  • Tries
    • 1.Rf4+?
      • 1...Kh5
        • 2.Qe8#
      • 1...Kxf4!
    • 1.Qa3?
      • threat
        • 2.Qxh3#
      • 1...Kh4
        • 2.Qxh3#
      • 1...Bf1
        • 2.Qf3#
        • 2.Qg3#
      • 1...Bg2
        • 2.Qg3#
      • 1...Kh5!
    • 1.Qd8?
      • 1...Bf1
        • 2.Rh4#
        • 2.Qh4#
        • 2.Qd4#
        • 2.Qg8#
      • 1...Bg2
        • 2.Rh4#
        • 2.Qh4#
        • 2.Qg8#
      • 1...h5
        • 2.Qg5#
        • 2.Qd4#
      • 1...Kh5!
    • 1.Qg8+?
      • 1...Kh5
        • 2.Rxh3#
      • 1...Kh4!
  • Keys
    • 1.Qe8!
      • 1...Kh4
        • 2.Rf4#
      • 1...Kh5
        • 2.Rf4#
      • 1...Bf1
        • 2.Qg8#
      • 1...Bg2
        • 2.Qg8#
      • 1...h5
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);::QAR(H)
    • P(c);SBLOCK::QAR(H)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(b);P_SPINB(a),S_FLIGHT::QAB(H)
      • Refutation
        • K(b);P-FLIGHT,XR(F)
    • Try
      • Q(H);
      • Threat
        • QAB1(H),XB(a)
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a)::QAR1(H),XB(a)
        • B(a);::QAR1(H)
      • Refutation
        • K(b);P_SPINB(a),S_FLIGHT
    • Try
      • Q(H);
      • Refutation
        • K(b);P_SPINB(a),S_FLIGHT
    • Try
      • Q(H);CHECK
      • Vars
        • K(b);P_SPINB(a),S_FLIGHT::R(A),XB(a)
      • Refutation
        • K(b);P-FLIGHT,P_SPINB(a)
  • Actual
    • Q(H);
    • Vars
      • K(b);P-FLIGHT,P_SPINB(a)::R(F)
      • K(b);P_SPINB(a),S_FLIGHT::QAB(H)+R(F)
      • B(a);::QAR(H)
      • P(c);SBLOCK::QAR(H)
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