MESON Chess Problem Database

Problem Display
PID: 265101 (5R2/2B5/R3p2r/KN3p1r/1pPpk1nQ/6Pb/2n1Pb2/3N4 w - - 0 1)

Nutt, John

Sunday Referee, 1936

(First published on Sun Aug 9 1936)

5R2/2B5/R3p2r/KN3p1r/1pPpk1nQ/6Pb/2n1Pb2/3N4

#2

10 + 11

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rh7
      • 2.Rxe6#
    • 1...Rh8
      • 2.Rxe6#
    • 1...Se3
      • 2.Sxf2#
    • 1...f4
      • 2.Rxf4#
  • Tries
    • 1.Qxg4+?
      • 1...fxg4
        • 2.Rf4#
      • 1...f4
        • 2.Rxf4#
        • 2.Qf3#
        • 2.Qxf4#
      • 1...Bxg4!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qa8#
      • 1...Sce3
        • 2.Qxd4#
      • 1...Sge3
        • 2.Sxf2#
      • 1...Se5
        • 2.Sd6#
      • 1...Sf6
        • 2.Rxe6#
      • 1...f4
        • 2.Rxf4#
      • 1...e5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(k);N_GUARD::R(H),XP(j)
    • S(a);SBLOCK::S(A),XB(b)
    • P(h);N_SPINS(g),OGATE,P_PINS(G)::R1(J),XP(h)
  • Tries
    • Try
      • Q(E);CHECK,XS(g)
      • Vars
        • P(h);OGATE,P_PINS(G),XQ(E)::R1(J)
      • Refutation
        • B(c);XQ(E)
  • Actual
    • Q(E);N_PINS(g)
    • Threat
      • QAB(E)
    • Vars
      • S(a);N_GUARD,S_CUTB(b)::QAR1(E),XP(e)
      • S(g);N_GUARD,SBLOCK::S(A),XB(b)
      • S(g);SBLOCK::S(G)
      • S(g);N_GUARD,S_CUTR(k)::R(H),XP(j)
      • P(h);OGATE,P_PINS(G)::R1(J),XP(h)
      • P(j);N_GUARD::QAB1(E)
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