MESON Chess Problem Database

Problem Display
PID: 178259 (7K/2R5/1n2p3/1pPkp3/8/3P4/1PN3b1/1BBQ3n w - - 0 1)

Vaulin, Evgeny A

Vratnica-64, 2005

7K/2R5/1n2p3/1pPkp3/8/3P4/1PN3b1/1BBQ3n

#2

9 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sa4
      • 2.Ba2#
    • 1...Sd7
      • 2.Ba2#
    • 1...Sa8
      • 2.Ba2#
    • 1...Sc8
      • 2.Ba2#
  • Tries
    • 1.Be3?
      • threat
        • 2.Sb4#
      • 1...b4
        • 2.Sxb4#
      • 1...e4!
    • 1.Qg4?
      • threat
        • 2.Se3#
        • 2.Sb4#
      • 1...Be4
        • 2.Qxe4#
      • 1...Sc4
        • 2.Sb4#
      • 1...b4
        • 2.Se3#
        • 2.Sxb4#
      • 1...e4!
    • 1.Qg1?
      • threat
        • 2.Sb4#
      • 1...e4
        • 2.Qd4#
      • 1...b4
        • 2.Sxb4#
      • 1...Sf2!
  • Keys
    • 1.d4!
      • threat
        • 2.Se3#
      • 1...Kc4
        • 2.Ba2#
      • 1...Ke4
        • 2.Sb4#
      • 1...exd4
        • 2.Qxd4#
      • 1...Sc4
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • S(f);N_GUARD::B(A)
  • Tries
    • Try
      • B(B);
      • Threat
        • S(E)
      • Vars
        • P(c);::S(E),XP(c)
      • Refutation
        • P(e);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);N_GUARD::QAB1(C),XB(b)
        • S(f);::S(E)
      • Refutation
        • P(e);
    • Try
      • Q(C);
      • Threat
        • S(E)
      • Vars
        • P(e);N_GUARD::QAR1(C)
        • P(c);::S(E),XP(c)
      • Refutation
        • S(a);
  • Actual
    • P(F);
    • Threat
      • S(E)
    • Vars
      • K(d);S_FLIGHT::B(A)
      • K(d);S_FLIGHT::B(A)+S(E)
      • P(e);OGATE,P_SPINP(e),XP(F)::QAR1(C),XP(e)
      • S(f);SBLOCK::S(E)
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