MESON Chess Problem Database

Problem Display
PID: 276882 (1rn1N1r1/p2pqb2/np1NkP1p/1K2P1RB/4R3/3p4/8/8 w - - 0 1)

Iago, G

Western Morning News, 1926

(First published on Sat Dec 11 1926)

1rn1N1r1/p2pqb2/np1NkP1p/1K2P1RB/4R3/3p4/8/8

#2

8 + 12

15239 Valois Notebooks 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd6
      • 2.exd6#
    • 1...Qxf6
      • 2.exf6#
    • 1...Qd8
      • 2.Bxf7#
    • 1...Sb4
      • 2.Sc7#
    • 1...Sc5
      • 2.Sc7#
    • 1...Sc7+
      • 2.Sxc7#
    • 1...Sxd6+
      • 2.exd6#
  • Keys
    • 1.Bd1!
      • threat
        • 2.Bb3#
      • 1...Sc7+
        • 2.Sxc7#
      • 1...Sxd6+
        • 2.exd6#
      • 1...Kd5
        • 2.Bb3#
      • 1...Qxd6
        • 2.exd6#
      • 1...Qxf6
        • 2.exf6#
      • 1...Sb4
        • 2.Sc7#
      • 1...Sc5
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • Q(h);OGATE,XS(F)::R(A)+P(C),XQ(h)
    • Q(h);OGATE,XP(G)::R(A)+P(C),XQ(h)
    • Q(h);N_GUARD::B(E),XB(i)
    • S(b);N_GUARD::S(H)
    • S(b);CHECK,N_GUARD::S(H),XS(b)
    • S(k);CHECK,OGATE,XS(F)::R(A)+P(C),XS(k)
  • Actual
    • B(E);
    • Threat
      • B(E)
    • Vars
      • S(b);CHECK,N_GUARD::S(H),XS(b)
      • S(k);CHECK,OGATE,XS(F)::R(A)+P(C),XS(k)
      • K(d);S_FLIGHT::B(E)
      • Q(h);OGATE,XS(F)::R(A)+P(C),XQ(h)
      • Q(h);OGATE,XP(G)::R(A)+P(C),XQ(h)
      • S(b);N_GUARD::S(H)
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