MESON Chess Problem Database

Problem Display
PID: 273176 (8/8/2pp1K2/3k4/n2p4/3N2P1/3Q4/6B1 w - - 0 1)

Lawton, Howard

Liverpool and Merseyside Illustrated, 1961

8/8/2pp1K2/3k4/n2p4/3N2P1/3Q4/6B1

#2

5 + 5

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Se5?
      • threat
        • 2.Qxd4#
      • 1...Ke4
        • 2.Qg2#
        • 2.Qxd4#
      • 1...Kc5
        • 2.Qa5#
      • 1...d3
        • 2.Qg2#
        • 2.Qxd3#
      • 1...c5
        • 2.Qg2#
      • 1...dxe5!
    • 1.Qg5+?
      • 1...Ke4
        • 2.Qf5#
      • 1...Kc4!
  • Keys
    • 1.Sb2!
      • threat
        • 2.Qxd4#
      • 1...Ke4
        • 2.Qg2#
      • 1...Kc5
        • 2.Qa5#
      • 1...d3
        • 2.Qg2#
        • 2.Qxd3#
      • 1...c5
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);P_PINP(b)
      • Threat
        • QAR1(B),XP(b)
      • Vars
        • K(c);N_GUARD,P-FLIGHT,S_CUTP(d),S_CUTS(a)::QAR2(B)
        • P(d);SBLOCK::QAB(B)
      • Refutation
        • P(e);XS(C)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(C);P_PINP(b)
    • Threat
      • QAR1(B),XP(b)
    • Vars
      • K(c);N_GUARD,N_SPINP(b),S_FLIGHT::QAB(B)
      • K(c);N_GUARD,P-FLIGHT,S_CUTP(d),S_CUTS(a)::QAR2(B)
      • P(d);SBLOCK::QAB(B)
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