MESON Chess Problem Database

Problem Display
PID: 21447 (8/B6r/k5p1/1R6/8/8/KQ6/8 w - - 0 1)

Scheel, Johan

Casopis ceskoslovenskych sachistu, 1919

8/B6r/k5p1/1R6/8/8/KQ6/8

#2

4 + 3

3360 Simple Two-move Themes 1924
5501 Chess Cameos 1936
70 American Chess Problemist 1949
4884 154 norske miniatyrproblemer 1974
2012 Miniature Chess Problems from Many Countries 1981
3295 Einfuhrung in die Welt des Schachproblem 1984
5395 Schach fur Nussknacker 1994
2838 Fun with Chess Miniatures 1996
3310 2345 Chess Problems 1997
3713 Snap 2009
5454 Near Snap 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Kxa7
      • 2.Ra5#
      • 2.Qa3#
  • Tries
    • 1.Rb4?
      • threat
        • 2.Ra4#
        • 2.Qa3#
      • 1...Ka5
        • 2.Qa3#
      • 1...Kxa7
        • 2.Ra4#
        • 2.Qa3#
      • 1...Rh2
        • 2.Ra4#
      • 1...Rh3
        • 2.Ra4#
      • 1...Rh4
        • 2.Qa3#
      • 1...Rh5!
    • 1.Rc5?
      • threat
        • 2.Qb6#
      • 1...Kxa7
        • 2.Ra5#
      • 1...Rxa7
        • 2.Qb5#
      • 1...Rb7
        • 2.Qa3#
      • 1...Rh2!
    • 1.Rd5?
      • threat
        • 2.Qb6#
      • 1...Kxa7
        • 2.Ra5#
      • 1...Rxa7
        • 2.Qb5#
      • 1...Rb7
        • 2.Qa3#
      • 1...Rh2!
    • 1.Re5?
      • threat
        • 2.Qb6#
      • 1...Kxa7
        • 2.Ra5#
      • 1...Rxa7
        • 2.Qb5#
      • 1...Rb7
        • 2.Qa3#
      • 1...Rh2!
    • 1.Rf5?
      • threat
        • 2.Qb6#
      • 1...Kxa7
        • 2.Ra5#
      • 1...Rxa7
        • 2.Qb5#
      • 1...Rb7
        • 2.Qa3#
      • 1...Rh2!
    • 1.Rg5?
      • threat
        • 2.Qb6#
      • 1...Kxa7
        • 2.Ra5#
      • 1...Rxa7
        • 2.Qb5#
      • 1...Rb7
        • 2.Qa3#
      • 1...Rh2!
    • 1.Rb6+?
      • 1...Ka5
        • 2.Qa3#
        • 2.Qb4#
        • 2.Qb5#
      • 1...Kxa7!
    • 1.Qb4?
      • threat
        • 2.Ra5#
        • 2.Qa5#
        • 2.Qa4#
      • 1...Kxa7
        • 2.Ra5#
        • 2.Qa3#
        • 2.Qa5#
        • 2.Qa4#
      • 1...Rh4
        • 2.Ra5#
        • 2.Qa5#
      • 1...Rh5
        • 2.Qa5#
        • 2.Qa4#
      • 1...Rh2+!
  • Keys
    • 1.Rh5!
      • threat
        • 2.Qb6#
      • 1...Kxa7
        • 2.Ra5#
      • 1...Rxa7
        • 2.Qb5#
      • 1...Rb7
        • 2.Qa3#

Anticipated by 125414(0000)

This anticipates 16409(1940)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
        • R(c);P_PINQ(B)::R(C)
        • R(c);::R(C)
        • R(c);::QAR(B)
      • Refutation
        • R(c);
    • Try
      • R(C);
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT,XB(D)::R(C)
        • R(c);SBLOCK,XB(D)::QAB1(B)
        • R(c);SBLOCK::QAR(B)
      • Refutation
        • R(c);P_PINQ(B)
    • Try
      • R(C);
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT,XB(D)::R(C)
        • R(c);SBLOCK,XB(D)::QAB1(B)
        • R(c);SBLOCK::QAR(B)
      • Refutation
        • R(c);P_PINQ(B)
    • Try
      • R(C);
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT,XB(D)::R(C)
        • R(c);SBLOCK,XB(D)::QAB1(B)
        • R(c);SBLOCK::QAR(B)
      • Refutation
        • R(c);P_PINQ(B)
    • Try
      • R(C);
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT,XB(D)::R(C)
        • R(c);SBLOCK,XB(D)::QAB1(B)
        • R(c);SBLOCK::QAR(B)
      • Refutation
        • R(c);P_PINQ(B)
    • Try
      • R(C);
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT,XB(D)::R(C)
        • R(c);SBLOCK,XB(D)::QAB1(B)
        • R(c);SBLOCK::QAR(B)
      • Refutation
        • R(c);P_PINQ(B)
    • Try
      • R(C);CHECK
      • Refutation
        • K(a);P-FLIGHT,XB(D)
    • Try
      • Q(B);
      • Threat
        • DUALS(3)
      • Refutation
        • R(c);CHECK
  • Actual
    • R(C);
    • Threat
      • QAR1(B)
    • Vars
      • K(a);P-FLIGHT,XB(D)::R(C)
      • R(c);SBLOCK,XB(D)::QAB1(B)
      • R(c);SBLOCK::QAR(B)
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