MESON Chess Problem Database

Problem Display
PID: 245266 (K3Q3/5R2/2B1p3/3ppP1r/2PPkb1p/4P1n1/5P1N/B2RN3 w - - 0 1)

Erokhin, Vladimir Alekseevich

64 Shakhmatnoe obozrenie, 1978

K3Q3/5R2/2B1p3/3ppP1r/2PPkb1p/4P1n1/5P1N/B2RN3

#2

13 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...exf5
      • 2.Bxd5#
  • Tries
    • 1.Qxe6?
      • threat
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Bxe3
        • 2.Qxe5#
      • 1...Rh8+!
    • 1.Qb8?
      • threat
        • 2.Qb1#
      • 1...Bxe3
        • 2.Qxe5#
      • 1...exd4
        • 2.Rxd4#
        • 2.Qxf4#
      • 1...Rh8!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sc5#
      • 1...Bxe3
        • 2.f3#
      • 1...exd4
        • 2.Bxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(h);N_GUARD,XP(I)::B(J),XP(e)
  • Tries
    • Try
      • Q(M);XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • B(c);N_GUARD,XP(F)::QAR1(M),XP(f)
      • Refutation
        • R(g);CHECK
    • Try
      • Q(M);
      • Threat
        • QAB(M)
      • Vars
        • B(c);N_GUARD,XP(F)::QAR1(M),XP(f)
      • Refutation
        • R(g);P_PINQ(M)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • B(c);SBLOCK,XP(F)::P(D)
      • P(f);S_CUTP(h),XP(H)::B(J),XP(e)
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