MESON Chess Problem Database

Problem Display
PID: 175761 (r2r4/P3PRp1/1N1k4/1P1N4/1K2p3/8/5B2/8 w - - 0 1)

Havelka, Frantisek

Narodni listy, 1898

r2r4/P3PRp1/1N1k4/1P1N4/1K2p3/8/5B2/8

#2

8 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.exd8Q+?
      • 1...Ke5
        • 2.Qe7#
      • 1...Ke6
        • 2.Qe7#
      • 1...Rxd8!
    • 1.e8Q?
      • threat
        • 2.Bg3#
        • 2.Bc5#
        • 2.Qe7#
      • 1...Rxa7
        • 2.Bg3#
        • 2.Bc5#
      • 1...Rac8
        • 2.Bg3#
        • 2.Qe7#
      • 1...Rd7
        • 2.Bg3#
        • 2.Bc5#
        • 2.Rxd7#
      • 1...Rdc8
        • 2.Bg3#
        • 2.Rd7#
        • 2.Qe7#
      • 1...e3
        • 2.Bg3#
        • 2.Qe7#
      • 1...Rxe8!
    • 1.e8R?
      • threat
        • 2.Bg3#
        • 2.Bc5#
      • 1...Rac8
        • 2.Bg3#
      • 1...Rdc8
        • 2.Bg3#
        • 2.Rd7#
      • 1...e3
        • 2.Bg3#
      • 1...Rxe8!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Bg3#
      • 1...Ke5
        • 2.Sc4#
      • 1...Kxc7
        • 2.e8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(G);CHECK,XR(e)
      • Vars
        • K(b);S_FLIGHT::QAR2(G)
        • K(b);P-FLIGHT::QAR1(G)
      • Refutation
        • R(d);XQ(G)
    • Try
      • P(G);
      • Threat
        • DUALS(3)
      • Refutation
        • R(e);XQ(G)
    • Try
      • P(G);
      • Threat
        • DUALS(2)
      • Vars
        • R(d);::B(A)
        • P(a);::B(A)
      • Refutation
        • R(e);XR(G)
  • Actual
    • S(D);
    • Threat
      • B(A)
    • Vars
      • K(b);S_FLIGHT::S(E)
      • K(b);S_FLIGHT,XS(D)::P=S
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