MESON Chess Problem Database

Problem Display
PID: 169139 (2B1r3/5Rpn/4pbp1/3P4/2NpPk1B/3Q1P2/1K1N4/8 w - - 0 1)

Permyakov, Evgeni Nikolaevich

HM., Liylu-75 JT (SuperProblem), 2016

2B1r3/5Rpn/4pbp1/3P4/2NpPk1B/3Q1P2/1K1N4/8

#2

10 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Se5?
      • threat
        • 2.Sxg6#
      • 1...Kxe5
        • 2.Bg3#
      • 1...g5
        • 2.Sg6#
      • 1...Sf8!
    • 1.e5?
      • threat
        • 2.Qe4#
      • 1...exd5
        • 2.Qxd4#
      • 1...Sg5!
  • Keys
    • 1.Qxd4!
      • threat
        • 2.Qe5#
      • 1...exd5
        • 2.e5#
      • 1...e5
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E),XP(e)
      • Vars
        • K(b);N_SPINB(d),S_FLIGHT,XS(E)::B(G)
        • P(e);::S(E)
      • Refutation
        • S(g);
    • Try
      • P(F);
      • Threat
        • QAR1(C)
      • Vars
        • P(c);XP(H)::QAR2(C),XP(a)
      • Refutation
        • S(g);
  • Actual
    • Q(C);P_SPINQ(C),XP(a)
    • Threat
      • QAB1(C)
    • Vars
      • P(c);XP(H)::QAR(C)+P(F)
      • P(c);N_PINQ(C)::QAB1(C)
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