MESON Chess Problem Database

Problem Display
PID: 60823 (4K3/5n2/1pR3Q1/n2kP3/8/2PN4/8/7b w - - 0 1)

Galitzky, Aleksandr Vasilevich

Shakhmatny Zhurnal, 1895

4K3/5n2/1pR3Q1/n2kP3/8/2PN4/8/7b

#2

6 + 5

3310 2345 Chess Problems 1997
14666 Aleksandr Galitzky - Shakhmaty Geine (Vol 1) 2010
3713 Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Qxg2#
    • 1...Be4
      • 2.Qe6#
    • 1...Sxe5
      • 2.Sb4#
      • 2.Sf4#
    • 1...b5
      • 2.Rc5#
  • Tries
    • 1.Qxf7+?
      • 1...Kxc6
        • 2.Qd7#
      • 1...Ke4!
  • Keys
    • 1.Qg4!
      • 1...Sd6+
        • 2.Rxd6#
      • 1...Kxc6
        • 2.Qd7#
      • 1...Sxc6
        • 2.c4#
      • 1...Sxe5
        • 2.Sb4#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Bg2
        • 2.Qxg2#
      • 1...Be4
        • 2.Qe6#
      • 1...Sb3
        • 2.Qc4#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sb7
        • 2.Qc4#
      • 1...Sg5
        • 2.Rd6#
      • 1...Sh6
        • 2.Rd6#
      • 1...Sd8
        • 2.Rd6#
      • 1...Sh8
        • 2.Rd6#
      • 1...b5
        • 2.Rc5#

This anticipates 174009(1917)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::QAB(E),XB(a)
    • B(a);SBLOCK::QAB1(E)
    • P(d);N_GUARD::R1(D)
  • Tries
    • Try
      • Q(E);CHECK,XS(e)
      • Vars
        • K(c);S_FLIGHT,XR(D)::QAB1(E)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(E);
    • Vars
      • S(e);CHECK,N_GUARD::R1(D),XS(e)
      • K(c);S_FLIGHT,XR(D)::QAB1(E)
      • S(b);N_GUARD,SBLOCK,XR(D)::P(A)
      • S(e);SBLOCK,XP(C)::S(B)
      • B(a);N_GUARD::QAB(E),XB(a)
      • B(a);SBLOCK::QAB1(E)
      • S(b);N_GUARD::QAB1(E)
      • S(b);N_GUARD::QAB1(E),XS(b)
      • S(e);N_GUARD::R1(D)
      • P(d);N_GUARD::R1(D)
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