MESON Chess Problem Database

Problem Display
PID: 225898 (8/2Q5/2P5/r5RK/2Pk1NR1/qp3p2/1b1pPp2/3B4 w - - 0 1)

Linder, Jozef

Praca, 1950

8/2Q5/2P5/r5RK/2Pk1NR1/qp3p2/1b1pPp2/3B4

#2

9 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Sg2#
      • 2.Sd5#
    • 1...Qc5
      • 2.Sd5#
    • 1...Rc5
      • 2.Sd5#
    • 1...Bc3
      • 2.Sg2#
  • Tries
    • 1.Sd3+?
      • 1...Ke3
        • 2.Qf4#
      • 1...Kc3!
    • 1.Sh3+?
      • 1...Ke3
        • 2.Qf4#
      • 1...Kc3!
    • 1.Se6+?
      • 1...Ke3
        • 2.Qf4#
      • 1...Kc3!
    • 1.Sg6+?
      • 1...Ke3
        • 2.Qf4#
      • 1...Kc3!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Qe5#
      • 1...Qxc5+
        • 2.Sd5#
      • 1...Rxc5+
        • 2.Sd5#
      • 1...Kc3
        • 2.Sd5#
      • 1...Ke3
        • 2.Sd5#
      • 1...Ke4
        • 2.Sg2#
      • 1...Kxc5
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(d);SBLOCK::R(E)+S(D)
    • R(h);SBLOCK::R(E)+S(D)
    • B(a);SBLOCK::R(E)+S(D)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(g);S_FLIGHT::QAB1(I)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(g);S_FLIGHT::QAB1(I)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(g);S_FLIGHT::QAB1(I)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(g);S_FLIGHT::QAB1(I)
      • Refutation
        • K(g);S_FLIGHT
  • Actual
    • R(F);
    • Threat
      • QAB1(I)
    • Vars
      • Q(d);CHECK,SBLOCK,XR(F)::R(E)+S(D)
      • R(h);CHECK,SBLOCK,XR(F)::R(E)+S(D)
      • K(g);S_FLIGHT::S(D)
      • K(g);P-FLIGHT::R(E)+S(D)
      • K(g);S_FLIGHT,XR(F)::S(D)
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