MESON Chess Problem Database

Problem Display
PID: 190109 (8/8/4p2K/8/4N3/rpQP2P1/1p1BN2b/1B1k1b2 w - - 0 1)

Papp, Istvan

Pesti Naplo, 1913

8/8/4p2K/8/4N3/rpQP2P1/1p1BN2b/1B1k1b2

#2

8 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe2
      • 2.Sf2#
  • Tries
    • 1.Qxb2?
      • threat
        • 2.S2c3#
        • 2.S4c3#
      • 1...Bxe2
        • 2.Sf2#
        • 2.Sc3#
        • 2.Qc1#
      • 1...Kxe2!
    • 1.Qb4?
      • threat
        • 2.S2c3#
      • 1...Bxe2
        • 2.Sf2#
      • 1...Kxe2!
    • 1.Qe5?
      • threat
        • 2.S2c3#
      • 1...Kxe2
        • 2.Qh5#
      • 1...Bxe2!
    • 1.Qg7?
      • threat
        • 2.S2c3#
      • 1...Kxe2
        • 2.Qg4#
      • 1...Bxe2!
    • 1.Qc5?
      • threat
        • 2.S2c3#
      • 1...Kxe2
        • 2.Qh5#
      • 1...Bxe2!
  • Keys
    • 1.Qa5!
      • threat
        • 2.S2c3#
      • 1...Kxe2
        • 2.Qh5#
      • 1...Bxe2
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK,XS(C)::S(G)
  • Tries
    • Try
      • Q(D);XP(c)
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(D);
      • Threat
        • S(C)
      • Vars
        • B(b);SBLOCK,XS(C)::S(G)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(D);
      • Threat
        • S(C)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(C)::QAB(D)
      • Refutation
        • B(b);XS(C)
    • Try
      • Q(D);
      • Threat
        • S(C)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(C)::QAB(D)
      • Refutation
        • B(b);XS(C)
    • Try
      • Q(D);
      • Threat
        • S(C)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(C)::QAB(D)
      • Refutation
        • B(b);XS(C)
  • Actual
    • Q(D);
    • Threat
      • S(C)
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(C)::QAB(D)
      • B(b);SBLOCK,XS(C)::S(G)
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Developed and maintained by Brian Stephenson.
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