MESON Chess Problem Database

Problem Display
PID: 267228 (8/1B1pN3/1nNpbQ2/1r3p2/R2P1R2/4k1P1/1PP5/4K3 w - - 0 1)

Swords, WJ

Sunday Referee, 1938

(First published on Sun Jun 5 1938)

8/1B1pN3/1nNpbQ2/1r3p2/R2P1R2/4k1P1/1PP5/4K3

#2

11 + 7

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Ra3#
    • 1...Bd5
      • 2.Sxf5#
    • 1...d5
      • 2.Qe5#
  • Tries
    • 1.Sa7?
      • threat
        • 2.Rf3#
      • 1...Rd5
        • 2.Ra3#
      • 1...Bd5
        • 2.Sxf5#
      • 1...d5
        • 2.Qe5#
      • 1...Sd5!
    • 1.Sb8?
      • threat
        • 2.Rf3#
      • 1...Rd5
        • 2.Ra3#
      • 1...Bd5
        • 2.Sxf5#
      • 1...d5
        • 2.Qe5#
      • 1...Sd5!
    • 1.Sd8?
      • threat
        • 2.Rf3#
      • 1...Rd5
        • 2.Ra3#
      • 1...Bd5
        • 2.Sxf5#
      • 1...d5
        • 2.Qe5#
      • 1...Sd5!
    • 1.Qxe6+?
      • 1...Re5
        • 2.Sxf5#
        • 2.Ra3#
        • 2.Qb3#
      • 1...dxe6!
    • 1.d5?
      • threat
        • 2.Qc3#
        • 2.Qd4#
      • 1...Sxa4
        • 2.Qd4#
      • 1...Sxd5
        • 2.Qd4#
      • 1...Rb3
        • 2.Qd4#
      • 1...Rb4
        • 2.Qc3#
      • 1...Rc5
        • 2.Qd4#
      • 1...Rxd5!
  • Keys
    • 1.Sa5!
      • threat
        • 2.Rf3#
      • 1...Rd5
        • 2.Ra3#
      • 1...Bd5
        • 2.Sxf5#
      • 1...Sd5
        • 2.Sc4#
      • 1...d5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD,S_CUTB(f)::R(E)
    • B(f);N_GUARD,S_CUTR(b)::S(K),XP(c)
    • P(e);N_GUARD,S_CUTR(b)::QAR2(I)
  • Tries
    • Try
      • S(H);
      • Threat
        • R1(G)
      • Vars
        • R(b);N_GUARD,S_CUTB(f)::R(E)
        • B(f);N_GUARD,S_CUTR(b)::S(K),XP(c)
        • P(e);N_GUARD,S_CUTR(b)::QAR2(I)
      • Refutation
        • S(d);
    • Try
      • S(H);
      • Threat
        • R1(G)
      • Vars
        • R(b);N_GUARD,S_CUTB(f)::R(E)
        • B(f);N_GUARD,S_CUTR(b)::S(K),XP(c)
        • P(e);N_GUARD,S_CUTR(b)::QAR2(I)
      • Refutation
        • S(d);
    • Try
      • S(H);
      • Threat
        • R1(G)
      • Vars
        • R(b);N_GUARD,S_CUTB(f)::R(E)
        • B(f);N_GUARD,S_CUTR(b)::S(K),XP(c)
        • P(e);N_GUARD,S_CUTR(b)::QAR2(I)
      • Refutation
        • S(d);
    • Try
      • Q(I);CHECK,XB(f)
      • Refutation
        • P(g);XQ(I)
    • Try
      • P(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(d);XR(E)::QAB1(I)
        • S(d);XP(F)::QAB1(I)
        • R(b);::QAB1(I)
        • R(b);::QAR2(I)
      • Refutation
        • R(b);XP(F)
  • Actual
    • S(H);
    • Threat
      • R1(G)
    • Vars
      • R(b);N_GUARD,S_CUTB(f)::R(E)
      • B(f);N_GUARD,S_CUTR(b)::S(K),XP(c)
      • S(d);N_GUARD,S_CUTB(f)::S(H)
      • P(e);N_GUARD,S_CUTR(b)::QAR2(I)
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