MESON Chess Problem Database

Problem Display
PID: 76385 (1b3Bn1/7B/3p1P1P/1p4Qp/2bk2N1/1PR1p2R/2r2P1K/3N4 w - - 0 1)

Kelly, Vincent

The Tablet, 1927

(First published on Sat Aug 20 1927)

1b3Bn1/7B/3p1P1P/1p4Qp/2bk2N1/1PR1p2R/2r2P1K/3N4

#2

12 + 9

15239 Valois Notebooks 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.fxe3#
    • 1...Be2
      • 2.fxe3#
    • 1...Bd3
      • 2.Rxd3#
    • 1...Bd5
      • 2.Qxe3#
    • 1...Be6
      • 2.Rd3#
    • 1...Bf7
      • 2.Rd3#
  • Tries
    • 1.Rxc4+?
      • 1...Rxc4
        • 2.fxe3#
      • 1...bxc4!
  • Keys
    • 1.Rh4!
      • threat
        • 2.Sgxe3#
      • 1...Rxf2+
        • 2.Sgxf2#
      • 1...d5+
        • 2.Se5#
      • 1...Sxf6
        • 2.Sxf6#
      • 1...Sxh6
        • 2.Sxh6#
      • 1...exf2
        • 2.Sgxf2#
        • 2.Sge3#
      • 1...hxg4
        • 2.Rxg4#
      • 1...Be2
        • 2.fxe3#
      • 1...Bd3
        • 2.Rxd3#
      • 1...Bd5
        • 2.Qxe3#
      • 1...Be6
        • 2.Rd3#
      • 1...e2
        • 2.Sge3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • R(a);N_PINP(B)::P(B),XP(b)
    • B(c);N_PINP(B)::P(B),XP(b)
    • B(c);N_GUARD::R1(E),XB(c)
    • B(c);SBLOCK::QAB1(H),XP(b)
    • B(c);N_GUARD::R1(E)
  • Tries
    • Try
      • R(E);CHECK,XB(c)
      • Vars
        • R(a);N_PINP(B),XR(E)::P(B),XP(b)
      • Refutation
        • P(e);XR(E)
  • Actual
    • R(F);
    • Threat
      • R(F)+S(G),XP(b)
    • Vars
      • R(a);CHECK,XP(B)::R(F)+S(G),XR(a)
      • P(g);CHECK,SBLOCK::R(F)+S(G)
      • S(i);XP(I)::R(F)+S(G),XS(i)
      • S(i);XP(J)::R(F)+S(G),XS(i)
      • P(f);OGATE,P_SPINP(f),XS(G)::R(F),XP(f)
      • B(c);N_PINP(B)::P(B),XP(b)
      • B(c);N_GUARD::R1(E),XB(c)
      • B(c);SBLOCK::QAB1(H),XP(b)
      • B(c);N_GUARD::R1(E)
      • P(b);N_PINP(B)::R(F)+S(G)
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