MESON Chess Problem Database

Problem Display
PID: 160044 (4N3/b4b2/3PrB2/1pr1p3/2k1N2R/P4Q2/3P1P2/3K4 w - - 0 1)

Andrew, Frederick William

Stratford Express, 0000

4N3/b4b2/3PrB2/1pr1p3/2k1N2R/P4Q2/3P1P2/3K4

#2

10 + 7

15351 SCPF/BCPS Black Books 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Sc3#
      • 2.Sg3#
      • 2.Sg5#
    • 1...Kd5
      • 2.Sc3#
    • 1...Rd5
      • 2.Qc3#
    • 1...Rxd6
      • 2.S4xd6#
  • Tries
    • 1.Ke2?
      • threat
        • 2.Qd3#
      • 1...Kd4
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sg5#
        • 2.Qd3#
      • 1...Kd5
        • 2.Sc3#
      • 1...Rxd6
        • 2.S4xd6#
      • 1...Rd5
        • 2.Qc3#
      • 1...Bh5!
    • 1.Qb3+?
      • 1...Kd4
        • 2.Sg3#
        • 2.Sg5#
      • 1...Kxb3!
  • Keys
    • 1.Kc2!
      • threat
        • 2.Qd3#
      • 1...Kd4+
        • 2.Sc3#
      • 1...Kd5+
        • 2.Sc3#
      • 1...Rxd6
        • 2.S4xd6#
      • 1...Rd5
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(E)+S(F),DCHECK
    • R(c);P_PINP(B),SBLOCK::QAR1(E)
    • R(e);P_PINP(B),XP(H)::R(G)+S(F),DCHECK,XR(e)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • QAB1(E)
      • Vars
        • K(a);S_FLIGHT::QAB(E)+S(F),DCHECK
        • R(e);XP(H)::R(G)+S(F),DCHECK,XR(e)
        • R(c);SBLOCK::QAR1(E)
      • Refutation
        • B(g);P_PINQ(E)
    • Try
      • Q(E);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(E)
  • Actual
    • K(A);S_FLIGHT
    • Threat
      • QAB1(E)
    • Vars
      • K(a);CHECK,P-FLIGHT,P_SPINP(d)::R(G)+S(F)
      • K(a);CHECK,S_FLIGHT::QAB(E)+S(F),DCHECK
      • R(e);XP(H)::R(G)+S(F),DCHECK,XR(e)
      • R(c);SBLOCK::QAR1(E)
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