MESON Chess Problem Database

Problem Display
PID: 119992 (8/2b1p3/1B2Q1p1/4P3/K1pN1kp1/2NR2p1/3n2r1/8 w - - 0 1)

Leopold, Dr Rudolf L

Magyar Sakkvilag, 1913

8/2b1p3/1B2Q1p1/4P3/K1pN1kp1/2NR2p1/3n2r1/8

#2

7 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...g5
      • 2.Qf5#
  • Tries
    • 1.Sd5+?
      • 1...Ke4
        • 2.Re3#
      • 1...Kg5!
    • 1.Qf7+?
      • 1...Kxe5
        • 2.Sc6#
        • 2.Bxc7#
      • 1...Kg5!
    • 1.Qxg6?
      • threat
        • 2.Qf5#
      • 1...Kxe5
        • 2.Bxc7#
      • 1...e6
        • 2.Qf6#
      • 1...cxd3!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qf7#
      • 1...Bxe5
        • 2.Qxe5#
      • 1...Sxf3
        • 2.Be3#
      • 1...gxf3
        • 2.Be3#
      • 1...Se4
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(g);N_GUARD::QAR1(G)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(e);P-FLIGHT::R1(B)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(G);XP(g)
      • Threat
        • QAR1(G)
      • Vars
        • K(e);OGATEB,S_FLIGHT,XP(E)::B(F),XB(h)
        • P(i);N_GUARD::QAR2(G)
      • Refutation
        • P(d);XR(B)
  • Actual
    • S(D);
    • Threat
      • QAR(G)
    • Vars
      • B(h);OGATE,XP(E)::QAB1(G),XB(h)
      • S(a);SBLOCK,XS(D)::B(F)
      • P(f);SBLOCK,XS(D)::B(F)
      • S(a);SBLOCK::S(A)
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