MESON Chess Problem Database

Problem Display
PID: 214517 (8/4Q3/3BB3/4R3/3R3P/2p5/2p3kN/2K4b w - - 0 1)

Meyer, Heinrich Friedrich Ludwig

Brownson's Chess Journal, 1877

8/4Q3/3BB3/4R3/3R3P/2p5/2p3kN/2K4b

#2

8 + 4

6490 yacpdb 2020
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxh2
      • 2.Rg5#
    • 1...Kg3
      • 2.Re2#
  • Tries
    • 1.Rd2+?
      • 1...Kg1
        • 2.Bc5#
        • 2.Re1#
        • 2.Qa7#
      • 1...Kg3
        • 2.Re1#
        • 2.Ree2#
        • 2.Re3#
        • 2.Re4#
        • 2.Ra5#
        • 2.Rb5#
        • 2.Rc5#
        • 2.Red5#
        • 2.Rh5#
        • 2.Qg5#
      • 1...cxd2+!
    • 1.Rg4+?
      • 1...Kf2
        • 2.Bc5#
        • 2.Qa7#
      • 1...Kxh2
        • 2.Re3#
      • 1...Kh3!
    • 1.Rf5?
      • 1...Kh3
        • 2.Rf2#
        • 2.Rg5#
      • 1...Kg1!
    • 1.Qg5+?
      • 1...Kxh2
        • 2.Re1#
        • 2.Re2#
        • 2.Re3#
        • 2.Ree4#
        • 2.Ra5#
        • 2.Rb5#
        • 2.Rc5#
        • 2.Red5#
      • 1...Kf2!
    • 1.Qf6?
      • threat
        • 2.Rg5#
      • 1...Kxh2
        • 2.Rg5#
      • 1...Kg3
        • 2.Re2#
        • 2.Rg5#
      • 1...Kg1!
    • 1.Qf8?
      • threat
        • 2.Rg5#
      • 1...Kxh2
        • 2.Rg5#
      • 1...Kg3
        • 2.Re2#
        • 2.Rg5#
      • 1...Kg1!
    • 1.Qf7?
      • threat
        • 2.Rg5#
      • 1...Kxh2
        • 2.Rg5#
      • 1...Kg3
        • 2.Re2#
        • 2.Rg5#
      • 1...Kg1!
    • 1.Qg7+?
      • 1...Kxh2
        • 2.Re1#
        • 2.Re2#
        • 2.Re3#
        • 2.Ree4#
        • 2.Ra5#
        • 2.Rb5#
        • 2.Rc5#
        • 2.Red5#
        • 2.Rg5#
        • 2.Rh5#
      • 1...Kf2!
  • Keys
    • 1.Qa7!
      • 1...Kg1
        • 2.Rd2#
      • 1...Kf2
        • 2.Rg4#
      • 1...Kxh2
        • 2.Rg5#
      • 1...Kg3
        • 2.Re2#

Anticipated by 4537(1876)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT,XS(B)::B(F)+R(E)
    • K(c);P-FLIGHT::B(F)+R(E)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • P(d);CHECK,XR(C)
    • Try
      • R(C);CHECK
      • Vars
        • K(c);P-FLIGHT,XS(B)::B(F)+R(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(E);
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(H);CHECK
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(H);
      • Threat
        • R(E)
      • Vars
        • K(c);P-FLIGHT,XS(B)::B(F)+R(E)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(H);
      • Threat
        • R(E)
      • Vars
        • K(c);P-FLIGHT,XS(B)::B(F)+R(E)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(H);
      • Threat
        • R(E)
      • Vars
        • K(c);P-FLIGHT,XS(B)::B(F)+R(E)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(H);CHECK
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(H);
    • Vars
      • K(c);P-FLIGHT::QAB(H)+R(C)
      • K(c);P-FLIGHT,XS(B)::B(F)+R(E)
      • K(c);P-FLIGHT::B(F)+R(E)
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