MESON Chess Problem Database

Problem Display
PID: 256577 (8/2K5/p3pp2/p4k1n/6R1/6n1/8/3Q4 w - - 0 1)

Maximov, Nikolai J

Wiener Schachzeitung, 1901

(First published on Mon Sep 9 1901)

8/2K5/p3pp2/p4k1n/6R1/6n1/8/3Q4

#2

3 + 7

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Qd7#
  • Tries
    • 1.Qc2+?
      • 1...Ke5
        • 2.Qc5#
      • 1...Se4
        • 2.Qxe4#
      • 1...Kxg4!
    • 1.Qf3+?
      • 1...Sf4
        • 2.Qxf4#
      • 1...Ke5!
    • 1.Qd4?
      • 1...Se4
        • 2.Qxe4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...e5
        • 2.Qd7#
      • 1...Sf1
        • 2.Qe4#
      • 1...Sh1
        • 2.Qe4#
      • 1...Se2
        • 2.Qe4#
      • 1...Sg7
        • 2.Qf4#
      • 1...a4!
  • Keys
    • 1.Qa4!
      • 1...Ke5
        • 2.Qxa5#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sf1
        • 2.Qe4#
      • 1...Sh1
        • 2.Qe4#
      • 1...Se2
        • 2.Qe4#
      • 1...Sg7
        • 2.Qf4#
      • 1...e5
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • P(f);OGATEB,SBLOCK::QAB(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);N_GUARD,P-FLIGHT,S_CUTP(f)::QAR2(A)
        • S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
      • Refutation
        • K(c);S_FLIGHT,XR(B)
    • Try
      • Q(A);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::QAR1(A),XS(d)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • S(a);N_GUARD::QAB1(A),XS(a)
        • S(d);N_GUARD::QAR1(A),XS(d)
        • P(f);OGATEB,SBLOCK::QAB(A)
        • S(a);N_GUARD::QAB1(A)
        • S(d);N_GUARD::QAR1(A)
      • Refutation
        • P(b);
  • Actual
    • Q(A);
    • Vars
      • K(c);N_GUARD,P-FLIGHT,S_CUTP(f)::QAR(A),XP(b)
      • S(a);N_GUARD::QAB1(A),XS(a)
      • S(d);N_GUARD::QAR1(A),XS(d)
      • S(a);N_GUARD::QAB1(A)
      • S(d);N_GUARD::QAR1(A)
      • P(f);OGATEB,SBLOCK::QAB(A)
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