MESON Chess Problem Database

Problem Display
PID: 178217 (8/4b3/3pN1K1/3Pk1p1/2P1p3/5p2/2pPpRP1/3b1Q2 w - - 0 1)

Hadzi-Vaskov, Georgi

Vratnica-64, 2004

8/4b3/3pN1K1/3Pk1p1/2P1p3/5p2/2pPpRP1/3b1Q2

#2

8 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...fxg2
      • 2.Rf5#
  • Tries
    • 1.Qxe2?
      • threat
        • 2.d4#
      • 1...fxe2
        • 2.Rf5#
      • 1...e3
        • 2.Qxe3#
      • 1...Bxe2!
  • Keys
    • 1.Rxe2!
      • threat
        • 2.d4#
      • 1...Bxe2
        • 2.Qa1#
      • 1...fxe2
        • 2.Qf5#
      • 1...e3
        • 2.Rxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(d);OGATE,XP(D)::R1(C)
  • Tries
    • Try
      • Q(A);P_PINP(e),XP(c)
      • Threat
        • P(B)
      • Vars
        • P(d);N_SPINP(e),OGATE,XQ(A)::R1(C)
        • P(e);OGATEB::QAR2(A),XP(e)
      • Refutation
        • B(a);N_SPINP(e),XQ(A)
  • Actual
    • R(C);P_PINP(e),XP(c)
    • Threat
      • P(B)
    • Vars
      • B(a);N_SPINP(e),OGATE,XR(C)::QAB(A)
      • P(d);N_SPINP(e),OGATE,XR(C)::QAR1(A)
      • P(e);OGATEB::R(C),XP(e)
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