MESON Chess Problem Database

Problem Display
PID: 31178 (8/3pp3/3RN2N/3Pk1p1/8/8/6Q1/K7 w - - 0 1)

Trcala, Stanislav

Das neue illustrierte Blatt, 1901

8/3pp3/3RN2N/3Pk1p1/8/8/6Q1/K7

#2

6 + 4

3437 Stanislav Trcala Sachovy odkaz 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd6
      • 2.Sf7#
    • 1...Kf6
      • 2.Qxg5#
  • Tries
    • 1.Rxd7?
      • 1...Kf6
        • 2.Qxg5#
      • 1...g4!
    • 1.Qf3?
      • threat
        • 2.Sf7#
      • 1...Kxd6
        • 2.Sf7#
      • 1...dxe6!
    • 1.Qe4+?
      • 1...Kxd6
        • 2.Sf5#
        • 2.Sf7#
      • 1...Kf6
        • 2.Qf5#
      • 1...Kxe4!
    • 1.Qb2+?
      • 1...Ke4
        • 2.Qe2#
      • 1...Kxd6!
    • 1.Qh2+?
      • 1...Ke4
        • 2.Qe2#
      • 1...Kf6!
    • 1.Qg3+?
      • 1...Kf6
        • 2.Qxg5#
      • 1...Ke4!
    • 1.Qxg5+?
      • 1...Kxd6
        • 2.Sf7#
      • 1...Ke4!
  • Keys
    • 1.Qd2!
      • 1...Ke4
        • 2.Qe2#
      • 1...Kxd6
        • 2.Sf7#
      • 1...Kf6
        • 2.Qxg5#
      • 1...dxe6
        • 2.Rxe6#
      • 1...exd6
        • 2.Qd4#
      • 1...g4
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT,XR(D)::S(F)
    • K(a);S_FLIGHT::QAB1(B),XP(b)
  • Tries
    • Try
      • R(D);XP(c)
      • Vars
        • K(a);S_FLIGHT::QAB1(B),XP(b)
      • Refutation
        • P(b);
    • Try
      • Q(B);
      • Threat
        • S(F)
      • Vars
        • K(a);S_FLIGHT,XR(D)::S(F)
      • Refutation
        • P(c);XS(E)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT,XR(D)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK,XP(b)
      • Vars
        • K(a);S_FLIGHT,XR(D)::S(F)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);P-FLIGHT::QAR2(B)
      • K(a);S_FLIGHT,XR(D)::S(F)
      • K(a);S_FLIGHT::QAB1(B),XP(b)
      • P(c);OGATE,XS(E)::R1(D),XP(c)
      • P(d);SBLOCK,XR(D)::QAB1(B)
      • P(b);N_GUARD::QAB1(B)
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