MESON Chess Problem Database

Problem Display
PID: 47028 (8/8/8/3KR3/5k2/Q7/5N2/5nr1 w - - 0 1)

Szwedowski, Leopold Mieczyslaw

Szachy, 1957

8/8/8/3KR3/5k2/Q7/5N2/5nr1

#2

4 + 3

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Rg3
      • 2.Qf8#
    • 1...Rg4
      • 2.Sh3#
    • 1...Sd2
      • 2.Qe3#
    • 1...Sh2
      • 2.Qe3#
    • 1...Se3+
      • 2.Qxe3#
    • 1...Sg3
      • 2.Qe3#
  • Tries
    • 1.Ke6?
      • threat
        • 2.Rf5#
      • 1...Se3
        • 2.Qxe3#
      • 1...Rg5
        • 2.Re4#
      • 1...Sg3
        • 2.Qe3#
      • 1...Rg6+!
    • 1.Qd3?
      • threat
        • 2.Rf5#
      • 1...Se3+
        • 2.Qxe3#
      • 1...Sg3
        • 2.Qe3#
      • 1...Rg5!
  • Keys
    • 1.Qh3!
      • threat
        • 2.Sd3#
        • 2.Rf5#
      • 1...Se3+
        • 2.Qxe3#
      • 1...Rg3
        • 2.Qf5#
      • 1...Sg3
        • 2.Qg4#
      • 1...Rg4
        • 2.Sd3#
        • 2.Qxg4#
      • 1...Rg5
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(b);SBLOCK::QAR(B)
    • R(b);SBLOCK::S(A)
    • S(a);N_GUARD::QAB1(B)
    • S(a);CHECK,N_GUARD::QAB1(B),XS(a)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • R1(D)
      • Vars
        • S(a);N_GUARD::QAB1(B),XS(a)
        • R(b);SBLOCK::R1(D)
        • S(a);N_GUARD::QAB1(B)
      • Refutation
        • R(b);CHECK
    • Try
      • Q(B);
      • Threat
        • R1(D)
      • Vars
        • S(a);CHECK,N_GUARD::QAB1(B),XS(a)
        • S(a);N_GUARD::QAB1(B)
      • Refutation
        • R(b);P_PINR(D)
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • S(a);CHECK,N_GUARD::QAB1(B),XS(a)
      • R(b);SBLOCK::QAR1(B)
      • S(a);S_CUTR(b)::QAR1(B)
      • R(b);P_PINR(D)::S(A)
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