MESON Chess Problem Database

Problem Display
PID: 259135 (3N4/4B3/Np1P3K/3kP2R/3b4/1R3P2/1p1Q1p2/2r1r3 w - - 0 1)

Phillips, W

Western Morning News, 1923

(First published on Sat Jun 30 1923)

3N4/4B3/Np1P3K/3kP2R/3b4/1R3P2/1p1Q1p2/2r1r3

#2

10 + 7

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sc7+?
      • 1...Kc4
        • 2.Qb4#
      • 1...Kc5
        • 2.Qb4#
      • 1...Rxc7!
    • 1.Rc3?
      • threat
        • 2.Sb4#
        • 2.Sc7#
      • 1...b1Q
        • 2.Sc7#
      • 1...b1R
        • 2.Sc7#
      • 1...Rxc3!
    • 1.e6+?
      • 1...Kc4
        • 2.Rb4#
        • 2.Qb4#
        • 2.Qd3#
      • 1...Re5!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qf7#
      • 1...Kc4
        • 2.Qf7#
      • 1...Bxe5
        • 2.Rd3#
      • 1...Bc3
        • 2.Rb5#
      • 1...Be3
        • 2.e6#
      • 1...Bc5
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(f);N_SPINB(e),S_CUTR(a),S_FLIGHT::QAR1(A)
        • K(f);N_SPINB(e),P-FLIGHT,S_CUTR(a)::QAB1(A)
      • Refutation
        • R(a);XS(F)
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::S(F)
      • Refutation
        • R(a);XR(B)
    • Try
      • P(D);CHECK
      • Refutation
        • R(b);P_SPINR(b)
  • Actual
    • Q(A);N_PINB(e)
    • Threat
      • QAB(A)
    • Vars
      • K(f);P_SPINB(e),S_FLIGHT::QAB(A)
      • B(e);OGATEB,P_SPINB(e),XP(D)::R(B)
      • B(e);N_GUARD,S_CUTR(a)::R(B)
      • B(e);N_GUARD,P_PINQ(A),S_CUTR(b)::R(E)+P(D)
      • B(e);SBLOCK,S_CUTR(a)::S(F)
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