MESON Chess Problem Database

Problem Display
PID: 221359 (3bBrQ1/2p2n2/R1N1P3/pP1k1pP1/2pP1B2/2P1K3/8/3R4 w - - 0 1)

Badzik, Ondrej

Praca Prvotina, 1952

3bBrQ1/2p2n2/R1N1P3/pP1k1pP1/2pP1B2/2P1K3/8/3R4

#2

12 + 8

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.d5#
    • 1...Be7
      • 2.Sxe7#
    • 1...a4
      • 2.Sb4#
  • Tries
    • 1.Qxf7?
      • threat
        • 2.Qd7#
      • 1...Be7
        • 2.Sxe7#
      • 1...Rxf7!
  • Keys
    • 1.e7!
      • 1...Ke6
        • 2.d5#
      • 1...Rxe8
        • 2.Qxf7#
      • 1...Rxg8
        • 2.Bxf7#
      • 1...Bxe7
        • 2.Sxe7#
      • 1...a4
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);OGATE,P_SPINS(f),S_FLIGHT,XP(J)::P(D)
    • B(g);N_GUARD::S(I),XB(g)
    • P(b);N_GUARD::S(I)
  • Tries
    • Try
      • Q(L);XS(f)
      • Threat
        • QAR2(L)
      • Vars
        • B(g);N_GUARD::S(I),XB(g)
      • Refutation
        • R(h);XQ(L)
  • Actual
    • P(J);P_PINS(f)
    • Vars
      • K(c);OGATE,S_FLIGHT::P(D)
      • R(h);N_GUARD,P_PINP(J),XB(K)::QAB(L),XS(f)
      • R(h);N_GUARD,N_SPINS(f),XQ(L)::B(K),XS(f)
      • B(g);XP(J)::S(I),XB(g)
      • P(b);N_GUARD::S(I)
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