MESON Chess Problem Database

Problem Display
PID: 167765 (8/8/8/3p1Q2/6R1/7p/1nPBk2K/1r3N2 w - - 0 1)

Prikryl, Bohuzlav

Das neue illustrierte Blatt, 1902

(First published on Mon Jun 9 1902)

8/8/8/3p1Q2/6R1/7p/1nPBk2K/1r3N2

#2

6 + 5

14868 Pirnie Collection 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rg2+?
      • 1...Kd1
        • 2.Se3#
      • 1...hxg2!
    • 1.Re4+?
      • 1...Kd1
        • 2.Re1#
      • 1...dxe4!
    • 1.Qd3+?
      • 1...Kd1
        • 2.Se3#
      • 1...Kf2
        • 2.Rf4#
      • 1...Sxd3!
    • 1.Qe6+?
      • 1...Kxf1
        • 2.Rf4#
      • 1...Kf2
        • 2.Rf4#
      • 1...Kf3
        • 2.Rf4#
      • 1...Kd1!
    • 1.Qf2+?
      • 1...Kd1
        • 2.Se3#
      • 1...Kxf2!
    • 1.Qe5+?
      • 1...Kxf1
        • 2.Rf4#
      • 1...Kf2
        • 2.Rf4#
      • 1...Kf3
        • 2.Rf4#
      • 1...Kd1!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Rf4#
      • 1...Kd1
        • 2.Rc4#
      • 1...Kxf1
        • 2.Rf4#
      • 1...Kf2
        • 2.Rf4#
      • 1...Kf3
        • 2.Rf4#
      • 1...Rxf1
        • 2.Rg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(c);S_FLIGHT::S(A)
      • Refutation
        • P(d);XR(E)
    • Try
      • R(E);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::R1(E)
      • Refutation
        • P(e);XR(E)
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);S_FLIGHT::S(A)
        • K(c);P-FLIGHT::R(E)
      • Refutation
        • S(b);XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(A)::R(E)
        • K(c);P-FLIGHT::R(E)
        • K(c);S_FLIGHT::R1(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);S_FLIGHT::S(A)
      • Refutation
        • K(c);P-FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(A)::R(E)
        • K(c);P-FLIGHT::R(E)
        • K(c);S_FLIGHT::R1(E)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(F);
    • Threat
      • QAB(F)+R(E)
    • Vars
      • K(c);S_FLIGHT::QAB(F)+R(E)
      • K(c);S_FLIGHT,XS(A)::R(E)
      • K(c);P-FLIGHT::R(E)
      • K(c);S_FLIGHT::QAB(F)+R(E),DCHECK
      • R(a);SBLOCK,XS(A)::QAB(F)+R(E),DCHECK
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