MESON Chess Problem Database

Problem Display
PID: 221618 (3N4/2K1p3/5p2/2p1kp2/2Pp1R2/3p4/3N1P1n/5Q2 w - - 0 1)

Chocolous, Jiri

Deutsche Schachzeitung, 1883

3N4/2K1p3/5p2/2p1kp2/2Pp1R2/3p4/3N1P1n/5Q2

#2

7 + 8

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rh4?
      • threat
        • 2.Qe1#
        • 2.f4#
      • 1...Sxf1
        • 2.Sf3#
        • 2.f4#
      • 1...Sg4
        • 2.f4#
      • 1...Sf3
        • 2.Sxf3#
      • 1...f4!
    • 1.Qe2+?
      • 1...Kxf4
        • 2.Se6#
      • 1...dxe2!
    • 1.Qxd3?
      • threat
        • 2.Rxf5#
        • 2.Qxf5#
      • 1...Kxf4
        • 2.Qg3#
      • 1...e6!
  • Keys
    • 1.Rxd4!
      • 1...Kxd4
        • 2.Qa1#
      • 1...Sxf1
        • 2.Sf3#
      • 1...cxd4
        • 2.f4#
      • 1...f4
        • 2.Rd5#
      • 1...Sf3
        • 2.Sxf3#
      • 1...Sg4
        • 2.Sf3#
      • 1...e6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::P(C)
        • S(a);N_GUARD::S(B),XS(a)
      • Refutation
        • P(f);
    • Try
      • Q(A);CHECK
      • Vars
        • K(e);S_FLIGHT,XR(E)::S(G)
      • Refutation
        • P(b);XQ(A)
    • Try
      • Q(A);XP(b)
      • Threat
        • DUALS(2)
      • Vars
        • K(e);OGATEB,S_FLIGHT,XR(E)::QAB1(A)
      • Refutation
        • P(h);
  • Actual
    • R(E);XP(c)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XR(E)::QAB(A)
      • S(a);N_GUARD,XQ(A)::S(B)
      • P(d);SBLOCK,XR(E)::P(C)
      • P(f);SBLOCK::R1(E)
      • S(a);N_GUARD::S(B),XS(a)
      • S(a);N_GUARD::S(B)
      • P(h);SBLOCK::S(G)
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