MESON Chess Problem Database

Problem Display
PID: 241127 (2K1R3/3Q4/4Bnp1/N3p3/1P1NP1rR/2pkP2b/8/2B5 w - - 0 1)

Erokhin, Vladimir Alekseevich

Shakhmaty (Riga), 1973

2K1R3/3Q4/4Bnp1/N3p3/1P1NP1rR/2pkP2b/8/2B5

#2

11 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Bc4#
      • 2.Qb5#
    • 1...Rg2
      • 2.Bc4#
      • 2.Qb5#
    • 1...Rg3
      • 2.Bc4#
      • 2.Qb5#
    • 1...Rxe4
      • 2.Bc4#
      • 2.Qb5#
    • 1...Rg5
      • 2.Bc4#
      • 2.Qb5#
    • 1...Sxe4
      • 2.Bc4#
      • 2.Qb5#
  • Tries
    • 1.Bb3?
      • threat
        • 2.Bc2#
      • 1...Kxe4
        • 2.Bc2#
      • 1...exd4
        • 2.Qb5#
      • 1...Rg2
        • 2.Bc4#
      • 1...c2!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qc2#
      • 1...Kxe4
        • 2.Qc2#
      • 1...exd4
        • 2.Bc4#
      • 1...c2
        • 2.Qxc2#
      • 1...Rg2
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(H);
      • Threat
        • B(H)
      • Vars
        • K(b);P_SPINP(e),P_SPINR(d),S_FLIGHT,XP(E)::B(H)
        • P(e);P_SPINP(e),XS(D)::QAB(I)
        • R(d);P_PINQ(I)::B(H)
      • Refutation
        • P(a);
  • Actual
    • Q(I);
    • Threat
      • QAB1(I)
    • Vars
      • K(b);P_SPINR(d),S_FLIGHT,XP(E)::QAB(I)
      • P(e);XS(D)::B(H)
      • P(a);::QAB1(I),XP(a)
      • R(d);P_PINB(H)::QAB(I)
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Developed and maintained by Brian Stephenson.
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