MESON Chess Problem Database

Problem Display
PID: 226496 (4K1Q1/7B/3PN3/1R6/P1k1r1qR/2p1p1pp/2NpP3/2b4b w - - 0 1)

Millins, James Lever

Sunday Chronicle, 1945

(First published on Sun Jul 15 1945)

4K1Q1/7B/3PN3/1R6/P1k1r1qR/2p1p1pp/2NpP3/2b4b

#2

10 + 10

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Sxe3#
    • 1...Qxe6+
      • 2.Qxe6#
    • 1...Qg7
      • 2.Sxe3#
    • 1...Rd4
      • 2.Sxe3#
    • 1...Rf4
      • 2.Sxe3#
      • 2.Bd3#
    • 1...Re5
      • 2.Bd3#
    • 1...Ba3
      • 2.Sxa3#
  • Keys
    • 1.Kd7!
      • threat
        • 2.Qc8#
      • 1...Qxe6+
        • 2.Qxe6#
      • 1...Qg7+
        • 2.Sxg7#
      • 1...Qxe2
        • 2.Sc5#
      • 1...Qxg8
        • 2.Sxe3#
      • 1...Rxe6
        • 2.Bd3#
      • 1...Qf5
        • 2.Sxe3#
      • 1...Qh5
        • 2.Sxe3#
      • 1...Qg5
        • 2.Sxg5#
      • 1...Rd4
        • 2.Sxe3#
      • 1...Rf4
        • 2.Sxe3#
        • 2.Bd3#
      • 1...Re5
        • 2.Bd3#
      • 1...Ba3
        • 2.Sxa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • Q(j);P_SPINR(i)::S(A),XP(e)
    • Q(j);CHECK,OGATE,P_SPINQ(j),P_SPINR(i),XS(G)::QAB(J),XQ(j)
    • R(i);N_GUARD,N_PINS(G)::S(A),XP(e)
    • R(i);OGATE,P_SPINQ(j)::B(H)
    • B(a);N_GUARD::S(A),XB(a)
  • Actual
    • K(I);S_FLIGHT
    • Threat
      • QAR(J)
    • Vars
      • Q(j);CHECK,OGATE,P_SPINQ(j),P_SPINR(i),XS(G)::QAB(J),XQ(j)
      • Q(j);CHECK,N_PINS(G),P_SPINR(i)::QAB(J)+S(G),XQ(j)
      • Q(j);N_PINS(G),P_SPINR(i),XP(B)::QAB(J)+S(G)
      • Q(j);N_PINS(G),P_SPINR(i),XQ(J)::S(A),XP(e)
      • R(i);OGATE,P_SPINQ(j),P_SPINR(i),XS(G)::B(H)
      • Q(j);P_SPINR(i)::S(A),XP(e)
      • Q(j);N_PINS(G),P_SPINR(i)::S(A),XP(e)
      • Q(j);N_PINS(G),P_SPINR(i)::QAB(J)+S(G),XQ(j)
      • R(i);N_GUARD,P_PINP(F)::S(A),XP(e)
      • R(i);OGATE,P_SPINQ(j)::B(H)
      • B(a);N_GUARD::S(A),XB(a)
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