MESON Chess Problem Database

Problem Display
PID: 77329 (2R1K1B1/3P2Bp/P4NPr/4N2p/4P2p/P6R/1kP5/rb3Q2 w - - 0 1)

Davey, David Murray

The Tablet, 1950

(First published on Sat Jul 8 1950)

2R1K1B1/3P2Bp/P4NPr/4N2p/4P2p/P6R/1kP5/rb3Q2

#2

14 + 7

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Sxh5?
      • threat
        • 2.Sg4#
      • 1...Rxa3
        • 2.Sd3#
      • 1...Rxg6
        • 2.Sxg6#
      • 1...Rxh5!
    • 1.Sxh7?
      • threat
        • 2.Sg4#
      • 1...Rxa3
        • 2.Sd3#
      • 1...Rxg6
        • 2.Sxg6#
      • 1...Rxh7!
    • 1.d8Q?
      • threat
        • 2.Qb6#
        • 2.Qd4#
      • 1...Bxc2
        • 2.Qd4#
      • 1...Ra2
        • 2.Qd4#
      • 1...Ba2
        • 2.Qd4#
      • 1...Rxa3!
  • Keys
    • 1.Sfg4!
      • 1...Rxa3
        • 2.Sd3#
      • 1...Rxg6
        • 2.Sxg6#
      • 1...Bxc2
        • 2.Sc6#
      • 1...hxg4
        • 2.Sxg4#
      • 1...hxg6
        • 2.Sxg6#
      • 1...Ra2
        • 2.Sf7#
      • 1...Ba2
        • 2.Sf7#

Illegal position

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(H);XP(e)
      • Threat
        • B(K)+S(F)
      • Vars
        • R(a);SBLOCK,XP(C)::B(K)+S(F),DCHECK
        • R(f);XP(I)::B(K)+S(F),XR(f)
      • Refutation
        • R(f);XS(H)
    • Try
      • S(H);XP(g)
      • Threat
        • B(K)+S(F)
      • Vars
        • R(a);SBLOCK,XP(C)::B(K)+S(F),DCHECK
        • R(f);XP(I)::B(K)+S(F),XR(f)
      • Refutation
        • R(f);XS(H)
    • Try
      • P(J);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);XP(B)::QAB(J)
        • R(a);::QAB(J)
        • B(b);::QAB(J)
      • Refutation
        • R(a);XP(C)
  • Actual
    • S(H);
    • Vars
      • R(a);SBLOCK,XP(C)::B(K)+S(F),DCHECK
      • R(f);XP(I)::B(K)+S(F),XR(f)
      • B(b);SBLOCK,XP(B)::B(K)+S(F)
      • P(e);XS(H)::B(K)+S(F),XP(e)
      • P(g);XP(I)::B(K)+S(F),XP(g)
      • R(a);SBLOCK::B(K)+S(F)
      • B(b);SBLOCK::B(K)+S(F)
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