MESON Chess Problem Database

Problem Display
PID: 271000 (8/8/5Q2/1PN2n2/2knN3/P3B3/3R1K2/1B6 w - - 0 1)

Manning, Rob T

Sunday Referee, 1932

(First published on Sun Sep 4 1932)

8/8/5Q2/1PN2n2/2knN3/P3B3/3R1K2/1B6

#2

9 + 3

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Kxb5
      • 2.Qa6#
    • 1...Kd5
      • 2.Ba2#
      • 2.Qe6#
    • 1...Sxb5
      • 2.Ba2#
      • 2.Qe6#
      • 2.Qf7#
  • Tries
    • 1.Ba2+?
      • 1...Kxb5
        • 2.Qa6#
      • 1...Sb3!
    • 1.Rxd4+?
      • 1...Kxb5
        • 2.Qa6#
      • 1...Sxd4!
    • 1.Qa6?
      • 1...Kd5
        • 2.Qe6#
      • 1...Sxb5
        • 2.Ba2#
        • 2.Qa4#
        • 2.Qe6#
      • 1...Sc2
        • 2.Ba2#
        • 2.b6#
      • 1...Se2
        • 2.Ba2#
        • 2.Qa4#
        • 2.b6#
      • 1...Sb3
        • 2.Qa4#
        • 2.b6#
      • 1...Sf3
        • 2.Ba2#
        • 2.Qa4#
        • 2.b6#
      • 1...Sc6
        • 2.Ba2#
        • 2.bxc6#
        • 2.b6#
      • 1...Se6
        • 2.Ba2#
        • 2.Qa4#
        • 2.b6#
      • 1...Sg3
        • 2.Rxd4#
      • 1...Sh4
        • 2.Rxd4#
      • 1...Sd6
        • 2.Rxd4#
      • 1...Sh6
        • 2.Rxd4#
      • 1...Se7
        • 2.Rxd4#
      • 1...Sg7
        • 2.Rxd4#
      • 1...Sxe3!
    • 1.Qc6?
      • threat
        • 2.Bd3#
      • 1...Sc2
        • 2.Ba2#
        • 2.Rxc2#
      • 1...Sxc6!
    • 1.Qd6?
      • threat
        • 2.Bd3#
      • 1...Kxb5
        • 2.Qa6#
      • 1...Sc2
        • 2.Qd3#
      • 1...Sxd6!
    • 1.Qe6+?
      • 1...Kxb5
        • 2.Qa6#
      • 1...Sxe6!
  • Keys
    • 1.Sc3!
      • 1...Kxc3
        • 2.Rc2#
      • 1...Kxc5
        • 2.Qc6#
      • 1...Sxb5
        • 2.Ba2#
        • 2.Bd3#
      • 1...Sxe3
        • 2.Qxd4#
      • 1...Sc2
        • 2.Ba2#
      • 1...Se2
        • 2.Ba2#
        • 2.Bd3#
      • 1...Sb3
        • 2.Bd3#
      • 1...Sf3
        • 2.Ba2#
        • 2.Bd3#
      • 1...Sc6
        • 2.Ba2#
        • 2.Bd3#
      • 1...Se6
        • 2.Ba2#
        • 2.Bd3#
      • 1...Sg3
        • 2.Qxd4#
      • 1...Sh4
        • 2.Qxd4#
      • 1...Sd6
        • 2.Qxd4#
      • 1...Sh6
        • 2.Qxd4#
      • 1...Se7
        • 2.Qxd4#
      • 1...Sg7
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 1
  • Sets
    • K(a);OGATEB,S_FLIGHT,XP(G)::QAB1(I)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • K(a);S_CUTS(b),S_FLIGHT,XP(G)::QAB1(I)
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • R(B);CHECK,XS(b)
      • Vars
        • K(a);S_CUTS(c),S_FLIGHT,XP(G)::QAB1(I)
      • Refutation
        • S(c);XR(B)
    • Try
      • Q(I);
      • Vars
        • K(a);N_GUARD,P_SPINS(b),S_FLIGHT::QAB1(I)
        • S(c);N_GUARD::R1(B),XS(b)
      • Refutation
        • S(c);XB(E)
    • Try
      • Q(I);
      • Threat
        • B(A)
      • Refutation
        • S(b);XQ(I)
    • Try
      • Q(I);
      • Threat
        • B(A)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(G)::QAB1(I)
        • S(b);OGATE::QAB1(I)
      • Refutation
        • S(c);XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(G)::QAB1(I)
      • Refutation
        • S(b);XQ(I)
  • Actual
    • S(F);
    • Vars
      • K(a);OGATEB,P-FLIGHT,P_SPINS(b),XS(F)::R1(B)
      • K(a);OGATEB,P-FLIGHT,P_SPINS(b),XS(H)::QAR1(I)
      • S(c);N_GUARD,XB(E)::QAR1(I),XS(b)
      • S(b);N_GUARD::B(A)
      • S(b);::B(A)
      • S(c);N_GUARD::QAR1(I),XS(b)
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