MESON Chess Problem Database

Problem Display
PID: 77194 (1K1N4/p2P3R/3kPn2/3pr2p/3P1Bn1/b2p4/5Q2/R7 w - - 0 1)

Anonymous

The Tablet, 1949

(First published on Sat Sep 3 1949)

1K1N4/p2P3R/3kPn2/3pr2p/3P1Bn1/b2p4/5Q2/R7

#2

9 + 9

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Ra6#
    • 1...Bb2
      • 2.Ra6#
    • 1...Bb4
      • 2.Ra6#
    • 1...Bc5
      • 2.dxc5#
    • 1...Sxf2
      • 2.Bxe5#
    • 1...Sh2
      • 2.Bxe5#
      • 2.dxe5#
    • 1...Se3
      • 2.Bxe5#
    • 1...Sh6
      • 2.Bxe5#
      • 2.dxe5#
    • 1...Sxd7+
      • 2.Rxd7#
    • 1...Se8
      • 2.dxe8S#
  • Keys
    • 1.Bc1!
      • threat
        • 2.Bxa3#
      • 1...Sxd7+
        • 2.Rxd7#
      • 1...Bxc1
        • 2.Ra6#
      • 1...Se4
        • 2.Qf8#
      • 1...Bb2
        • 2.Ra6#
      • 1...Bb4
        • 2.Ra6#
      • 1...Bc5
        • 2.dxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(a);OGATE::R(A)
    • B(a);OGATE::P(C),XB(a)
    • S(c);N_GUARD,XQ(B)::B(D),XR(e)
    • S(c);N_GUARD::B(D),XR(e)
    • S(h);CHECK,OGATE,XP(F)::R1(G),XS(h)
    • S(h);OGATE::PXS(h)=S
  • Actual
    • B(D);N_PINR(e)
    • Threat
      • B(D),XB(a)
    • Vars
      • S(h);CHECK,OGATE,XP(F)::R1(G),XS(h)
      • B(a);OGATE,XB(D)::R(A)
      • S(h);OGATE::QAB(B)
      • B(a);OGATE::R(A)
      • B(a);OGATE::P(C),XB(a)
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