MESON Chess Problem Database

Problem Display
PID: 46183 (8/4rp2/3n4/b1p1R1P1/2pk2PQ/1b2R3/1N2P2K/7B w - - 0 1)

Vatarescu, Paul

The Problemist Supplement, 2002

8/4rp2/3n4/b1p1R1P1/2pk2PQ/1b2R3/1N2P2K/7B

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sf5
      • 2.gxf5#
  • Tries
    • 1.Qf2?
      • threat
        • 2.Rd5#
      • 1...Rxe5
        • 2.Rd3#
      • 1...c3
        • 2.R3e4#
      • 1...Se4!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Rd5#
      • 1...Rxe5
        • 2.Qxe5#
      • 1...Se4
        • 2.R3xe4#
      • 1...c3
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(f);OGATE::QAR(G)+P(F),XS(f)
  • Tries
    • Try
      • Q(G);
      • Threat
        • R1(H)
      • Vars
        • R(g);SBLOCK,XR(H)::QAB(G)+R(E),DCHECK
        • P(b);SBLOCK::QAB(G)+R(E),DCHECK
      • Refutation
        • S(f);
  • Actual
    • Q(G);
    • Threat
      • R1(H)
    • Vars
      • R(g);OGATE,XR(H)::QAB1(G),XR(g)
      • S(f);N_GUARD::R1(E),XS(f)
      • P(b);N_GUARD::R1(E)
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