MESON Chess Problem Database

Problem Display
PID: 228819 (8/q7/1r5Q/4p3/1b1kP3/N3RP2/1nP3r1/1KB3N1 w - - 0 1)

Raymond, H

Sunday Chronicle, 1947

(First published on Sun Sep 21 1947)

8/q7/1r5Q/4p3/1b1kP3/N3RP2/1nP3r1/1KB3N1

#2

9 + 7

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.c3#
  • Tries
    • 1.Rd3+?
      • 1...Kc5
        • 2.Be3#
        • 2.Rd5#
      • 1...Sxd3!
    • 1.Qxb6+?
      • 1...Bc5
        • 2.Qxb2#
        • 2.c3#
      • 1...Qxb6!
  • Keys
    • 1.Rc3!
      • threat
        • 2.Qe3#
      • 1...Kxc3
        • 2.Bxb2#
      • 1...Rxh6
        • 2.Sb5#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Re2
        • 2.Sxe2#
      • 1...Rg5
        • 2.Se2#
      • 1...Sd1
        • 2.Rc4#
      • 1...Sd3
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • B(c);N_GUARD,SBLOCK::P(D)
  • Tries
    • Try
      • R(F);CHECK
      • Refutation
        • S(a);XR(F)
    • Try
      • Q(I);CHECK,XR(f)
      • Refutation
        • Q(g);XQ(I)
  • Actual
    • R(F);
    • Threat
      • QAB1(I)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XR(F)::B(B),XS(a)
      • R(f);N_GUARD,XQ(I)::S(E)
      • S(a);N_GUARD::R1(F),XS(a)
      • R(b);N_GUARD::S(C),XR(b)
      • R(b);N_GUARD::S(C)
      • S(a);N_GUARD::R1(F)
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