MESON Chess Problem Database

Problem Display
PID: 269169 (b7/2B4n/8/Q6B/7R/3pk3/2p5/1r2N1K1 w - - 0 1)

Kipping, Cyril Stanley

Sunday Referee, 1930

(First published on Sun Jun 29 1930)

b7/2B4n/8/Q6B/7R/3pk3/2p5/1r2N1K1

#2

6 + 6

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Bb6#
    • 1...Rc1
      • 2.Bb6#
    • 1...Rd1
      • 2.Bb6#
    • 1...Rxe1+
      • 2.Qxe1#
    • 1...Rb6
      • 2.Bxb6#
    • 1...Rb7
      • 2.Sg2#
    • 1...Sg5
      • 2.Qxg5#
    • 1...Sf6
      • 2.Qg5#
    • 1...Sf8
      • 2.Qg5#
    • 1...d2
      • 2.Qc3#
      • 2.Qc5#
  • Tries
    • 1.Bf4+?
      • 1...Ke4
        • 2.Bc1#
        • 2.Bd2#
        • 2.Bg5#
        • 2.Bh6#
        • 2.Qe5#
      • 1...Kd4!
    • 1.Re4+?
      • 1...Kxe4
        • 2.Qe5#
      • 1...Bxe4!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qxd3#
      • 1...Rxe1+
        • 2.Qxe1#
      • 1...c1S
        • 2.Sc2#
      • 1...Rd1
        • 2.Bb6#
      • 1...Rb3
        • 2.Sxc2#
      • 1...Be4
        • 2.Bf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(a);N_GUARD::B(F)
    • R(a);CHECK,OGATE,XS(A)::QAR2(D),XR(a)
    • R(a);N_GUARD,N_PINS(A)::B(F),XR(a)
    • R(a);N_PINS(A)::S(A)
    • S(e);N_GUARD::QAB(D),XS(e)
    • S(e);N_GUARD::QAB(D)
  • Tries
    • Try
      • B(F);CHECK
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(d);N_GUARD,P-FLIGHT,S_CUTB(f),XR(C)::QAR1(D)
      • Refutation
        • B(f);XR(C)
  • Actual
    • Q(D);P_PINP(c)
    • Threat
      • QAR1(D),XP(c)
    • Vars
      • R(a);CHECK,OGATE,XS(A)::QAR2(D),XR(a)
      • P(b);N_PINS(A)::S(A)
      • R(a);N_GUARD::B(F)
      • R(a);N_PINS(A)::S(A),XP(b)
      • B(f);SBLOCK::B(F)
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