MESON Chess Problem Database

Problem Display
PID: 266468 (8/2B2QN1/2pR4/2r1k1p1/7n/2p5/2K3b1/8 w - - 0 1)

Slade, TE

Sunday Referee, 1937

(First published on Sun Aug 8 1937)

8/2B2QN1/2pR4/2r1k1p1/7n/2p5/2K3b1/8

#2

5 + 7

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Be4+
      • 2.Rd3#
    • 1...Sf3
      • 2.Qf5#
    • 1...Sf5
      • 2.Qxf5#
    • 1...Sg6
      • 2.Qf5#
  • Keys
    • 1.Qf2!
      • threat
        • 2.Rd4#
        • 2.Qd4#
      • 1...Be4+
        • 2.Rd3#
      • 1...Ke4
        • 2.Rd4#
      • 1...Bf3
        • 2.Qd4#
      • 1...Sf3
        • 2.Qe3#
      • 1...Rc4
        • 2.Rd4#
      • 1...Rd5
        • 2.Re6#
      • 1...Bd5
        • 2.Re6#
      • 1...Sf5
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • B(a);CHECK,SBLOCK::B(C)+R(B)
    • S(c);N_GUARD::QAR1(D)
    • S(c);N_GUARD::QAR1(D),XS(c)
  • Actual
    • Q(D);
    • Threat
      • DUALS(2)
    • Vars
      • B(a);CHECK,SBLOCK::B(C)+R(B)
      • K(e);P-FLIGHT::R1(B)
      • B(a);::QAB1(D)
      • S(c);S_CUTB(a)::QAR2(D)
      • R(d);::B(C)+R(B)
      • R(d);SBLOCK::B(C)+R(B),DCHECK
      • B(a);SBLOCK::B(C)+R(B),DCHECK
      • S(c);N_GUARD::QAR1(D),XS(c)
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