MESON Chess Problem Database

Problem Display
PID: 287395 (nN2Q3/1bp5/1pr1p2R/2k2P1R/1p2pK2/1P2N3/5B2/8 w - - 0 1)

Millins, Edgar

Grantham Journal, 1925

(First published on Sat Jan 10 1925)

nN2Q3/1bp5/1pr1p2R/2k2P1R/1p2pK2/1P2N3/5B2/8

#2

9 + 9

15239 Valois Notebooks 2026

SOLUTION

  • SOUND
  • Sets
    • 1...Kb5
      • 2.fxe6#
    • 1...Kd6
      • 2.Qf8#
    • 1...exf5
      • 2.Qe5#
    • 1...e5+
      • 2.Qxe5#
  • Tries
    • 1.Sc4+?
      • 1...Kb5
        • 2.fxe6#
      • 1...Kd5
        • 2.fxe6#
      • 1...e3!
    • 1.Qxc6+?
      • 1...Kd4
        • 2.Qc4#
      • 1...Bxc6!
    • 1.fxe6+?
      • 1...Kd6
        • 2.Rd5#
        • 2.Qd7#
        • 2.Qd8#
        • 2.Qf8#
        • 2.e7#
      • 1...Kd4!
    • 1.f6+?
      • 1...Kd6
        • 2.Qd7#
        • 2.Qe7#
        • 2.Qd8#
        • 2.Qf8#
      • 1...e5+
        • 2.Qxe5#
      • 1...Kd4!
  • Keys
    • 1.Kxe4!
      • 1...Rd6+
        • 2.Sd5#
      • 1...exf5+
        • 2.Rxf5#
      • 1...Kb5
        • 2.fxe6#
      • 1...Kd6
        • 2.Qf8#
      • 1...Ba6
        • 2.Qxc6#
      • 1...Bc8
        • 2.Qxc6#
      • 1...b5
        • 2.Sc4#
      • 1...e5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);N_GUARD,P-FLIGHT,P_SPINR(e)::R(F)+P(E),XP(f)
    • K(c);N_GUARD,P_SPINP(f),S_CUTR(e),S_FLIGHT::QAB(I)
    • P(f);OGATE,P_SPINP(f),XP(E)::QAR2(I)
    • P(f);CHECK,OGATE::QAR2(I),XP(f)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINR(e)::R(F)+P(E),XP(f)
        • K(c);P-FLIGHT::R(F)+P(E),XP(f)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • Q(I);CHECK,XR(e)
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(I)
      • Refutation
        • B(g);XQ(I)
    • Try
      • P(E);CHECK,XP(f)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(E);CHECK
      • Vars
        • P(f);CHECK,OGATE,P_SPINP(f)::QAR2(I),XP(f)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • K(D);P-FLIGHT,XP(b)
    • Vars
      • R(e);CHECK,SBLOCK::B(A)+S(C)
      • P(f);CHECK,OGATE,P_SPINP(f),XP(E)::R(F),XP(f)
      • K(c);N_GUARD,P-FLIGHT,P_SPINR(e)::R(F)+P(E),XP(f)
      • K(c);N_GUARD,P_SPINP(f),S_CUTR(e),S_FLIGHT::QAB(I)
      • B(g);N_GUARD::QAR1(I),XR(e)
      • P(d);SBLOCK::B(A)+S(C)
      • P(f);OGATE::QAR2(I),XP(f)
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