MESON Chess Problem Database

Problem Display
PID: 203009 (B7/8/7p/3p1p1P/p2B1p2/K2k1N1R/p2N3P/Q7 w - - 0 1)

Haywood, TH

Western Daily Mercury, 1920

(First published on Fri Jun 4 1920)

B7/8/7p/3p1p1P/p2B1p2/K2k1N1R/p2N3P/Q7

#2

9 + 7

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke2
      • 2.Qf1#
  • Tries
    • 1.Kxa2?
      • 1...Kc2
        • 2.Qb1#
      • 1...Ke2
        • 2.Qf1#
      • 1...a3!
    • 1.Kb2?
      • threat
        • 2.Qf1#
      • 1...Ke2
        • 2.Qf1#
      • 1...a3+!
    • 1.Kxa4?
      • 1...Ke2
        • 2.Qf1#
      • 1...Kc2!
    • 1.Sf1?
      • 1...Kc2
        • 2.Se1#
      • 1...Ke2
        • 2.Sg1#
      • 1...Ke4
        • 2.S3d2#
      • 1...Kc4!
    • 1.Sb3?
      • 1...Kc2
        • 2.Se1#
      • 1...Ke2
        • 2.Sg1#
      • 1...Kc4
        • 2.Qf1#
      • 1...Ke4
        • 2.Sc5#
        • 2.Sfd2#
      • 1...axb3!
    • 1.Bxd5?
      • 1...Ke2
        • 2.Bc4#
        • 2.Qf1#
      • 1...Kc2!
    • 1.Bc6?
      • 1...Ke2
        • 2.Bb5#
        • 2.Qf1#
      • 1...Kc2!
    • 1.Bb7?
      • 1...Ke2
        • 2.Ba6#
        • 2.Qf1#
      • 1...Kc2!
    • 1.Rh4?
      • 1...Ke2
        • 2.Qf1#
      • 1...Kc2!
  • Keys
    • 1.Sc4!
      • 1...Kc2
        • 2.Se1#
      • 1...Ke2
        • 2.Sg1#
      • 1...Kxc4
        • 2.Qf1#
      • 1...Ke4
        • 2.Sfd2#
      • 1...dxc4
        • 2.Qd1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(A)
  • Tries
    • Try
      • K(D);P-FLIGHT,XP(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • P(c);
    • Try
      • K(D);S_FLIGHT
      • Threat
        • QAB(A)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • P(c);CHECK
    • Try
      • K(D);P-FLIGHT,XP(c)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(b);S_FLIGHT::S(E)
        • K(b);P_SPINP(e),S_FLIGHT::S(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(b);S_FLIGHT::S(E)
        • K(b);S_FLIGHT::QAB(A)
      • Refutation
        • P(c);XS(B)
    • Try
      • B(I);XP(e)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(I);
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(I);
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(F);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(b);S_FLIGHT::S(E)
      • K(b);S_FLIGHT,XS(B)::QAB(A)
      • K(b);P_SPINP(e),S_FLIGHT::S(E)
      • P(e);SBLOCK,XS(B)::QAR2(A)
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