MESON Chess Problem Database

Problem Display
PID: 175467 (8/6pb/3Q4/2Np1p1p/p2k2P1/K1R3n1/4P3/8 w - - 0 1)

Weinheimer, Rudolf

Philadelphia Times, 1899

8/6pb/3Q4/2Np1p1p/p2k2P1/K1R3n1/4P3/8

#2

6 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...g5
      • 2.Qf6#
    • 1...g6
      • 2.Qf6#
  • Tries
    • 1.Kb4?
      • threat
        • 2.Rd3#
        • 2.e3#
      • 1...Sxe2
        • 2.Rd3#
      • 1...fxg4
        • 2.e3#
      • 1...Sf1
        • 2.Rd3#
        • 2.Qf4#
      • 1...f4!
    • 1.Se6+?
      • 1...Ke4
        • 2.Qf4#
      • 1...Kxc3!
    • 1.Sd7?
      • threat
        • 2.Qb4#
        • 2.Qe5#
      • 1...Ke4
        • 2.Qe5#
      • 1...Kxc3!
    • 1.Qxd5+?
      • 1...Kxc3
        • 2.Qd3#
      • 1...Kxd5!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qxg7#
      • 1...Kxc3
        • 2.Sb3#
      • 1...Se4
        • 2.Se6#
      • 1...g5
        • 2.Qg7#
      • 1...g6
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(g);N_GUARD::QAB(F)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XP(A)::R1(C)
        • P(e);XP(D)::P(A)
      • Refutation
        • P(e);
    • Try
      • S(E);CHECK
      • Vars
        • K(c);N_SPINP(d),P-FLIGHT::QAR1(F)
      • Refutation
        • K(c);N_SPINP(d),S_FLIGHT,XR(C)
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);N_SPINP(d),P-FLIGHT::QAR1(F)
      • Refutation
        • K(c);N_SPINP(d),S_FLIGHT,XR(C)
    • Try
      • Q(F);CHECK,XP(d)
      • Vars
        • K(c);OGATE,S_FLIGHT,XR(C)::QAR1(F)
      • Refutation
        • K(c);P-FLIGHT,XQ(F)
  • Actual
    • Q(F);N_PINP(d)
    • Threat
      • QAB(F),XP(g)
    • Vars
      • K(c);S_FLIGHT,XR(C)::QAR(F)+S(E)
      • S(a);SBLOCK::S(E)
      • P(g);::QAB(F)
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