MESON Chess Problem Database

Problem Display
PID: 103337 (8/7p/7p/3N3Q/1p1pk1p1/1p4R1/1p1p4/bK1B4 w - - 0 1)

Mach, Gunther

1/2 Prize, Source?, 1927

8/7p/7p/3N3Q/1p1pk1p1/1p4R1/1p1p4/bK1B4

#2

5 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Rxg4#
  • Tries
    • 1.Rf3?
      • threat
        • 2.Sf6#
        • 2.Qf5#
      • 1...d3
        • 2.Rf4#
      • 1...gxf3!
    • 1.Qg5?
      • threat
        • 2.Sf6#
      • 1...d3
        • 2.Rxg4#
      • 1...hxg5!
  • Keys
    • 1.Rxb3!
      • 1...d3
        • 2.Rxb4#
      • 1...g3
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(f);SBLOCK::R(C),XP(h)
  • Tries
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(f);SBLOCK::R1(C)
      • Refutation
        • P(h);XR(C)
    • Try
      • Q(E);
      • Threat
        • S(D)
      • Vars
        • P(f);SBLOCK::R(C),XP(h)
      • Refutation
        • P(i);XQ(E)
  • Actual
    • R(C);XP(d)
    • Vars
      • P(f);OGATEB,SBLOCK::R(C),XP(e)
      • P(h);N_GUARD::B(B)
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