MESON Chess Problem Database

Problem Display
PID: 270884 (3R3B/2pN1R2/2P2n2/2Pk4/P7/3B4/1K6/6Q1 w - - 0 1)

Boswell, Edward

Sunday Referee, 1932

(First published on Sun Jul 17 1932)

3R3B/2pN1R2/2P2n2/2Pk4/P7/3B4/1K6/6Q1

#2

10 + 3

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Sxf6+?
      • 1...Ke5
        • 2.Qe3#
      • 1...Kxc6
        • 2.Be4#
      • 1...Ke6!
    • 1.Bxf6?
      • 1...Kxc6
        • 2.Be4#
        • 2.Qh1#
        • 2.Qg2#
      • 1...Ke6!
    • 1.Qh1+?
      • 1...Kd4
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Qg2+?
      • 1...Kd4
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Ke6!
  • Keys
    • 1.Qg6!
      • 1...Kd4
        • 2.Qe4#
      • 1...Kxc6
        • 2.Be4#
      • 1...Ke6
        • 2.Bc4#
      • 1...Sxd7
        • 2.Rf5#
      • 1...Se4
        • 2.Rf5#
        • 2.Qxe4#
      • 1...Sg4
        • 2.Qe4#
      • 1...Sh5
        • 2.Rf5#
        • 2.Qe4#
      • 1...Sh7
        • 2.Rf5#
        • 2.Qe4#
      • 1...Se8
        • 2.Rf5#
        • 2.Qe4#
      • 1...Sg8
        • 2.Rf5#
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK,XS(b)
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAR2(A)
        • K(a);N_GUARD,S_FLIGHT,XP(F)::B(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(J);XS(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINS(b)::QAR1(A)
        • S(b);N_GUARD,P_SPINS(b)::QAB1(A),XS(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINS(b)::QAR1(A)
        • S(b);N_GUARD,P_SPINS(b)::QAB1(A),XS(b)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);P-FLIGHT,P_SPINS(b)::QAR1(A)
      • K(a);N_GUARD,P_SPINS(b),S_FLIGHT,XP(F)::B(C)
      • K(a);N_GUARD,P_SPINS(b),S_FLIGHT::B(C)
      • S(b);OGATE,P_SPINS(b),XS(G)::R(H)
      • S(b);N_GUARD::QAB1(A)
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