MESON Chess Problem Database

Problem Display
PID: 224810 (3BB1br/3PN3/2p1k1p1/2P1N1P1/1R2K1R1/2pppp2/1P6/q7 w - - 0 1)

Salai (Jr), Ladislav

Suomen Shakki, 1980

3BB1br/3PN3/2p1k1p1/2P1N1P1/1R2K1R1/2pppp2/1P6/q7

#2

11 + 10

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bf7
      • 2.Bxf7#
    • 1...Bh7
      • 2.Bf7#
  • Tries
    • 1.S5xg6?
      • threat
        • 2.Sf4#
        • 2.Sf8#
      • 1...Bf7
        • 2.Sf4#
      • 1...Bh7!
    • 1.Sd5?
      • threat
        • 2.Sf4#
        • 2.Sc7#
      • 1...Qa5
        • 2.Sf4#
      • 1...Qa7
        • 2.Sf4#
      • 1...cxd5+!
    • 1.Sf5?
      • threat
        • 2.Sd4#
        • 2.Sg7#
      • 1...Rh7
        • 2.Sd4#
      • 1...gxf5+!
  • Keys
    • 1.S7xg6!
      • threat
        • 2.Sf4#
        • 2.Sf8#
      • 1...Bf7
        • 2.Sf4#
        • 2.Bxf7#
      • 1...Bh7
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • B(i);N_GUARD::B(K),XB(i)
    • B(i);N_GUARD::B(K)
  • Tries
    • Try
      • S(F);XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • B(i);::S(F)
      • Refutation
        • B(i);P_PINS(F)
    • Try
      • S(I);
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);::S(I)
      • Refutation
        • P(f);CHECK,XS(I)
    • Try
      • S(I);
      • Threat
        • DUALS(2)
      • Vars
        • R(j);::S(I)
      • Refutation
        • P(h);CHECK,XS(I)
  • Actual
    • S(I);XP(h)
    • Threat
      • DUALS(2)
    • Vars
      • B(i);N_GUARD,P_PINS(I)::B(K)
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