MESON Chess Problem Database

Problem Display
PID: 40476 (8/K1p5/8/2RQ1N2/7p/6bR/1n1Pk2N/3nrrB1 w - - 0 1)

Grzankowski, Waclaw

6th Comm., BCF 028. Ty., 1938-1939

8/K1p5/8/2RQ1N2/7p/6bR/1n1Pk2N/3nrrB1

#2

8 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Qe4+?
      • 1...Kxd2
        • 2.Rc2#
        • 2.Qc2#
      • 1...Se3!
  • Keys
    • 1.Rc2!
      • threat
        • 2.d3#
      • 1...Bf2+
        • 2.d4#
      • 1...Sf2
        • 2.Qf3#
      • 1...Sc3
        • 2.dxc3#
      • 1...Se3
        • 2.dxe3#
      • 1...Bf4
        • 2.Sd4#
      • 1...Sd3
        • 2.Sd4#
      • 1...Sc4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);CHECK
      • Refutation
        • S(a);P_SPINS(a)
  • Actual
    • R(E);
    • Threat
      • R(E)+P(B)
    • Vars
      • B(f);CHECK::R(E)+P(B)
      • S(a);S_CUTR(c)::QAB1(F)
      • S(a);OGATE::R(E)+P(B),XS(a)
      • B(f);::S(G)
      • S(d);SBLOCK::S(G)
      • S(d);N_GUARD::QAB(F),XS(d)
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