MESON Chess Problem Database

Problem Display
PID: 250381 (2BN4/3P1K1R/1RN4p/2p2kpP/3p2p1/3Pq1Q1/3p1p2/8 w - - 0 1)

Dean, AT

Manchester Evening News, 1924

(First published on Sat May 31 1924)

2BN4/3P1K1R/1RN4p/2p2kpP/3p2p1/3Pq1Q1/3p1p2/8

#2

10 + 9

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd3
      • 2.Qe5#
    • 1...Qf3
      • 2.Se7#
      • 2.Qe5#
    • 1...Qe5
      • 2.Qxe5#
    • 1...Qe7+
      • 2.Sxe7#
    • 1...Qe8+
      • 2.dxe8Q#
      • 2.dxe8S#
      • 2.dxe8B#
      • 2.dxe8R#
  • Tries
    • 1.Kg8?
      • threat
        • 2.Rf7#
      • 1...Qe8+
        • 2.dxe8S#
      • 1...Kf6
        • 2.Rf7#
      • 1...Qxd3
        • 2.Qe5#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qe7
        • 2.Sxe7#
        • 2.Qxf2#
      • 1...Qe6+!
    • 1.Sxd4+?
      • 1...cxd4
        • 2.Rf6#
      • 1...Qxd4!
    • 1.Rxh6?
      • threat
        • 2.Rf6#
      • 1...Qe7+
        • 2.Sxe7#
      • 1...Qe8+
        • 2.dxe8Q#
        • 2.dxe8S#
        • 2.dxe8B#
        • 2.dxe8R#
      • 1...Qxd3
        • 2.Qe5#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qe6+!
    • 1.Qxe3?
      • threat
        • 2.Se7#
        • 2.Qxf2#
        • 2.Qe4#
        • 2.Qe5#
      • 1...g3
        • 2.Qf3#
        • 2.Qe4#
      • 1...d1Q
        • 2.Se7#
        • 2.Qe4#
        • 2.Qe5#
      • 1...d1S
        • 2.Se7#
        • 2.Qe4#
        • 2.Qe5#
      • 1...d1B
        • 2.Se7#
        • 2.Qe4#
        • 2.Qe5#
      • 1...f1Q
        • 2.Se7#
        • 2.Qe4#
        • 2.Qe5#
      • 1...f1S
        • 2.Se7#
        • 2.Qf2#
        • 2.Qe4#
        • 2.Qe5#
      • 1...f1B
        • 2.Se7#
        • 2.Qf2#
        • 2.Qe4#
        • 2.Qe5#
      • 1...f1R
        • 2.Se7#
        • 2.Qe4#
        • 2.Qe5#
      • 1...dxe3!
  • Keys
    • 1.Kf8!
      • threat
        • 2.Rf7#
      • 1...Qe7+
        • 2.Sxe7#
      • 1...Qe8+
        • 2.dxe8S#
      • 1...Kf6
        • 2.Rf7#
      • 1...Qxd3
        • 2.Qe5#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qe6
        • 2.Qxf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(c);N_GUARD,XP(A)::QAR1(B)
    • Q(c);N_GUARD::QAR1(B),XQ(c)
    • Q(c);CHECK,N_GUARD::S(E),XQ(c)
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Threat
        • R(H)
      • Vars
        • Q(c);CHECK,OGATE::PXQ(c)=S
        • K(g);P-FLIGHT::R1(H)
        • Q(c);N_GUARD,XP(A)::QAR1(B)
        • Q(c);N_GUARD::QAR1(B),XQ(c)
      • Refutation
        • Q(c);CHECK
    • Try
      • S(E);CHECK,XP(d)
      • Vars
        • P(f);XS(E)::R1(D)
      • Refutation
        • Q(c);XS(E)
    • Try
      • R(H);XP(i)
      • Threat
        • R1(H)
      • Vars
        • Q(c);CHECK,N_GUARD::S(E),XQ(c)
        • Q(c);N_GUARD,XP(A)::QAR1(B)
        • Q(c);N_GUARD::QAR1(B),XQ(c)
      • Refutation
        • Q(c);CHECK
    • Try
      • Q(B);XQ(c)
      • Threat
        • DUALS(4)
      • Refutation
        • P(d);XQ(B)
  • Actual
    • K(G);P-FLIGHT
    • Threat
      • R(H)
    • Vars
      • Q(c);CHECK,N_GUARD::S(E),XQ(c)
      • Q(c);CHECK,OGATE::PXQ(c)=S
      • K(g);P-FLIGHT::R1(H)
      • Q(c);N_GUARD,XP(A)::QAR1(B)
      • Q(c);N_GUARD::QAR1(B),XQ(c)
      • Q(c);N_GUARD::QAR(B),XP(b)
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