MESON Chess Problem Database

Problem Display
PID: 267275 (2b3nq/1N1B4/4p3/4R3/rk1KQ3/4R1p1/1P2N3/6bn w - - 0 1)

Neale, Harry R

Stevenson, Edward

Sunday Referee, 1938

(First published on Sun Aug 14 1938)

2b3nq/1N1B4/4p3/4R3/rk1KQ3/4R1p1/1P2N3/6bn

#2

8 + 9

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe5+
      • 2.Kxe5#
    • 1...Qh2
      • 2.Rb5#
    • 1...Qh3
      • 2.Rb5#
    • 1...Qh4
      • 2.Rb5#
    • 1...Qh6
      • 2.Rb5#
    • 1...Qh7
      • 2.Rb5#
    • 1...Ra3
      • 2.bxa3#
    • 1...Bxb7
      • 2.Qxb7#
    • 1...Sf6
      • 2.Rb5#
  • Keys
    • 1.Sc1!
      • threat
        • 2.Kd3#
      • 1...Qxe5+
        • 2.Kxe5#
      • 1...Bxe3+
        • 2.Kxe3#
      • 1...Bxb7
        • 2.Qxb7#
      • 1...Qh4
        • 2.Rb5#
      • 1...Qh7
        • 2.Rb5#
      • 1...Ra3
        • 2.bxa3#
      • 1...Sf2
        • 2.Rb3#
      • 1...Sf6
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • Q(i);CHECK,XR(F)::QAR(E)+K(D),XQ(i)
    • Q(i);OGATE::R1(F)
    • Q(i);OGATE,P_PINQ(E)::R1(F)
    • R(d);OGATE::P(A),XR(d)
    • B(g);OGATE,XS(G)::QAR(E),XB(g)
    • S(h);OGATE::R1(F)
  • Actual
    • S(B);
    • Threat
      • QAR(E)+K(D)
    • Vars
      • Q(i);CHECK,XR(F)::QAR(E)+K(D),XQ(i)
      • B(a);CHECK,P_PINR(F),XR(C)::QAR(E)+K(D),XB(a)
      • B(g);OGATE,XS(G)::QAR(E),XB(g)
      • Q(i);OGATE,P_PINQ(E)::R1(F)
      • Q(i);OGATE::R1(F)
      • R(d);OGATE::P(A),XR(d)
      • S(b);N_PINR(C),P_PINR(F)::R1(C)
      • S(h);OGATE::R1(F)
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