MESON Chess Problem Database

Problem Display
PID: 269168 (6Q1/1K3N2/2PB1r1R/3kp1NR/3b4/2pB4/2p3r1/8 w - - 0 1)

Attfield, AG

Sunday Referee, 1930

(First published on Sun Jun 22 1930)

6Q1/1K3N2/2PB1r1R/3kp1NR/3b4/2pB4/2p3r1/8

#2

9 + 7

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf7+
      • 2.Qxf7#
  • Tries
    • 1.Sxe5+?
      • 1...Re6
        • 2.Qxe6#
      • 1...Rf7+
        • 2.Qxf7#
      • 1...Kxd6!
    • 1.Sd8+?
      • 1...Re6
        • 2.Qxe6#
      • 1...Rf7+
        • 2.Qxf7#
      • 1...Kxd6!
    • 1.Sh8+?
      • 1...Re6
        • 2.Qxe6#
      • 1...Rf7+
        • 2.Qxf7#
      • 1...Kxd6!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sc7#
      • 1...Kxe6
        • 2.Bc4#
      • 1...Rxe6
        • 2.Qxg2#
      • 1...Bg1
        • 2.Rxe5#
      • 1...Bf2
        • 2.Rxe5#
      • 1...Be3
        • 2.Rxe5#
      • 1...Bc5
        • 2.Rxe5#
      • 1...Bb6
        • 2.Rxe5#
      • 1...Ba7
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • R(g);CHECK,OGATE,P_SPINR(g),XS(H)::QAB(I),XR(g)
  • Tries
    • Try
      • S(H);CHECK,XP(f)
      • Vars
        • R(g);N_GUARD,P_SPINR(g)::QAB1(I),XR(g)
        • R(g);CHECK,N_GUARD,P_SPINR(g)::QAB(I),XR(g)
      • Refutation
        • K(e);P-FLIGHT,P_SPINR(g),XB(E)
    • Try
      • S(H);CHECK
      • Vars
        • R(g);N_GUARD,P_SPINR(g)::QAB1(I),XR(g)
        • R(g);CHECK,N_GUARD,P_SPINR(g)::QAB(I),XR(g)
      • Refutation
        • K(e);P-FLIGHT,P_SPINR(g),XB(E)
    • Try
      • S(H);CHECK
      • Vars
        • R(g);N_GUARD,P_SPINR(g)::QAB1(I),XR(g)
        • R(g);CHECK,N_GUARD,P_SPINR(g)::QAB(I),XR(g)
      • Refutation
        • K(e);P-FLIGHT,P_SPINR(g),XB(E)
  • Actual
    • S(B);P_PINP(f)
    • Threat
      • S(B)
    • Vars
      • K(e);N_GUARD,N_SPINP(f),P_SPINR(g),S_FLIGHT,XS(B)::B(A)
      • R(g);N_GUARD,XS(B)::QAB(I),XR(b)
      • B(d);N_GUARD::R1(C),XP(f)
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