MESON Chess Problem Database

Problem Display
PID: 15140 (8/6p1/Bpp3Qp/1q5p/8/2pP1R2/2NkP3/N3R2K w - - 0 1)

Macleod, Norman Alasdair

3rd Prize, Mat, 1980

8/6p1/Bpp3Qp/1q5p/8/2pP1R2/2NkP3/N3R2K

#2

9 + 8

3752 FIDE Album (1980-1982) 1988
4640 Chess Wizardry: The New ABC of Chess Problems 1996
6455 The Chessboard Adventures of Norman Macleod 1996
4849 The Sushkov Theme 1999
102 Probleemblad 2003
145 StrateGems 2007
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd3
      • 2.Rxd3#
      • 2.Qxd3#
  • Tries
    • 1.Rf2?
      • threat
        • 2.e3#
      • 1...Qd5+
        • 2.e4#
      • 1...Qxd3
        • 2.Qxd3#
        • 2.exd3#
      • 1...Qf5!
    • 1.Qg2?
      • threat
        • 2.e4#
      • 1...Qxd3
        • 2.Rxd3#
        • 2.exd3#
      • 1...Qc5
        • 2.e3#
      • 1...Qg5!
    • 1.e4?
      • threat
        • 2.Qg2#
      • 1...Qxd3
        • 2.Rxd3#
      • 1...Qg5
        • 2.Rf2#
      • 1...Qc5!
  • Keys
    • 1.e3!
      • threat
        • 2.Rf2#
      • 1...Qxd3
        • 2.Qxd3#
      • 1...Qd5
        • 2.Qg2#
      • 1...Qf5
        • 2.Qg2#

This anticipates 242256(1980)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);
      • Threat
        • R(G)+P(E)
      • Vars
        • Q(c);CHECK::R(G)+P(E)
      • Refutation
        • Q(c);
    • Try
      • Q(I);
      • Threat
        • QAR(I)+P(E)
      • Vars
        • Q(c);::QAR(I)+P(E)
      • Refutation
        • Q(c);
    • Try
      • P(E);
      • Threat
        • QAR(I)
      • Vars
        • Q(c);OGATE,XP(F)::R1(G),XQ(c)
        • Q(c);::R(G)
      • Refutation
        • Q(c);
  • Actual
    • P(E);
    • Threat
      • R(G)
    • Vars
      • Q(c);OGATE,XP(F)::QAR1(I),XQ(c)
      • Q(c);P_PINR(G)::QAR(I)
      • Q(c);::QAR(I)
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