MESON Chess Problem Database

Problem Display
PID: 174963 (5Q2/1B6/1p2p3/4knp1/7B/7P/3K1R1P/8 w - - 0 1)

von Wardener, Friedrich Freiherr

Deutsche Schachzeitung, 1901

5Q2/1B6/1p2p3/4knp1/7B/7P/3K1R1P/8

#2

7 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.Bg3#
      • 2.Qb8#
    • 1...Sd6
      • 2.Qg7#
      • 2.Qf6#
      • 2.Qh8#
    • 1...g4
      • 2.Bf6#
  • Tries
    • 1.Bg3+?
      • 1...Kd4
        • 2.Qb4#
      • 1...Sxg3!
    • 1.Bxg5?
      • threat
        • 2.Bf6#
      • 1...Se7
        • 2.Qf4#
      • 1...Kd4!
    • 1.Re2+?
      • 1...Kd4
        • 2.Re4#
        • 2.Qb4#
      • 1...Kf4
        • 2.Bg3#
      • 1...Se3!
    • 1.Rxf5+?
      • 1...Kd4
        • 2.Qb4#
      • 1...exf5!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Re4#
      • 1...Kxf4
        • 2.Bg3#
      • 1...gxf4
        • 2.Bf6#
      • 1...Sg3
        • 2.Qb8#
      • 1...Sd6
        • 2.Qf6#
      • 1...Se7
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • P(c);OGATE::B(E)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(G)
      • Refutation
        • S(b);XB(E)
    • Try
      • B(E);XP(c)
      • Threat
        • B(E)
      • Vars
        • S(b);OGATE::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P_SPINS(b),S_FLIGHT::B(E)
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • R(B);CHECK,XS(b)
      • Vars
        • K(a);S_FLIGHT::QAR2(G)
      • Refutation
        • P(e);XR(B)
  • Actual
    • R(B);
    • Threat
      • R1(B)
    • Vars
      • K(a);OGATEB,P_SPINS(b),S_FLIGHT,XR(B)::B(E)
      • P(c);OGATE,SBLOCK,XR(B)::B(E)
      • S(b);N_GUARD::QAB(G)
      • S(b);SBLOCK::QAB1(G)
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Developed and maintained by Brian Stephenson.
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