MESON Chess Problem Database

Problem Display
PID: 250324 (3r3n/5b2/n1R1p3/1RrNk3/K5P1/N3PP2/8/b2Q4 w - - 0 1)

Walton, FW

Manchester Evening News, 1923

(First published on Sat Jan 6 1923)

3r3n/5b2/n1R1p3/1RrNk3/K5P1/N3PP2/8/b2Q4

#2

9 + 8

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Qd4#
    • 1...Rc4+
      • 2.Sxc4#
    • 1...Rxb5
      • 2.Sc4#
    • 1...Rcxd5
      • 2.Qxa1#
    • 1...Bd4
      • 2.Qxd4#
  • Tries
    • 1.Rbxc5?
      • threat
        • 2.Sc4#
        • 2.Qxa1#
      • 1...Rxd5
        • 2.Qxa1#
      • 1...Rb8
        • 2.Sc4#
      • 1...Bb2
        • 2.Sc4#
      • 1...Bc3
        • 2.Sc4#
      • 1...Bd4
        • 2.Sc4#
        • 2.Qxd4#
        • 2.exd4#
      • 1...Sxc5+!
    • 1.Qxa1+?
      • 1...Rc3
        • 2.Sc4#
        • 2.Qxc3#
      • 1...Kxd5!
  • Keys
    • 1.Qh1!
      • threat
        • 2.f4#
      • 1...Rc4+
        • 2.Sxc4#
      • 1...Kxd5
        • 2.f4#
      • 1...Rcxd5
        • 2.Qxa1#
      • 1...Rxc6
        • 2.Qh2#
      • 1...Rdxd5
        • 2.Qxh8#
      • 1...Sg6
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(b);S_CUTB(a)::QAB1(A)
    • R(b);CHECK,N_GUARD::S(B),XR(b)
    • R(b);N_GUARD,XR(G)::S(B)
    • R(b);N_GUARD,P_SPINR(b),XS(H)::QAB(A),XB(a)
    • B(a);N_GUARD::QAB1(A),XB(a)
  • Tries
    • Try
      • R(G);XR(b)
      • Threat
        • DUALS(2)
      • Vars
        • R(g);P_SPINR(g),XS(H)::QAB(A),XB(a)
        • R(g);::S(B)
        • B(a);::S(B)
      • Refutation
        • S(d);CHECK,XR(G)
    • Try
      • Q(A);CHECK,XB(a)
      • Refutation
        • K(c);P-FLIGHT,P_SPINR(b),XS(H)
  • Actual
    • Q(A);
    • Threat
      • P(D)
    • Vars
      • R(b);CHECK,N_GUARD::S(B),XR(b)
      • K(c);P-FLIGHT,P_SPINR(b),XS(H)::QAB(A)+P(D)
      • R(b);N_GUARD,P_SPINR(b),XS(H)::QAB(A),XB(a)
      • R(b);XR(I)::QAB(A)
      • R(g);N_GUARD,SBLOCK,XS(H)::QAB(A),XS(h)
      • S(h);S_CUTB(f)::QAR(A)
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