MESON Chess Problem Database

Problem Display
PID: 31198 (8/2Q5/8/8/1p4B1/1N4B1/2P1Pp2/K2k4 w - - 0 1)

Trcala, Stanislav

Lidove noviny, 1907

8/2Q5/8/8/1p4B1/1N4B1/2P1Pp2/K2k4

#2

7 + 3

3437 Stanislav Trcala Sachovy odkaz 1999
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...f1S
      • 2.e3#
      • 2.e4#
  • Tries
    • 1.Kb1?
      • 1...f1Q
        • 2.Qd6#
        • 2.Qd8#
        • 2.Qd7#
      • 1...f1S
        • 2.e3#
        • 2.e4#
      • 1...f1B
        • 2.Qd6#
        • 2.Qd8#
        • 2.Qd7#
      • 1...f1R
        • 2.Qd6#
        • 2.Qd8#
        • 2.Qd7#
      • 1...Ke1!
    • 1.Kb2?
      • 1...f1Q
        • 2.Qd6#
        • 2.Qd8#
        • 2.Qd7#
      • 1...f1S
        • 2.e3#
        • 2.e4#
      • 1...f1B
        • 2.Qd6#
        • 2.Qd8#
        • 2.Qd7#
      • 1...f1R
        • 2.Qd6#
        • 2.Qd8#
        • 2.Qd7#
      • 1...Ke1!
    • 1.Qf4?
      • threat
        • 2.Qc1#
        • 2.Qd2#
      • 1...Ke1
        • 2.Qc1#
      • 1...f1S
        • 2.Qc1#
      • 1...Kxc2!
    • 1.Qd6+?
      • 1...Kxc2
        • 2.Qd3#
      • 1...Ke1!
    • 1.Qd8+?
      • 1...Kxc2
        • 2.Qd3#
      • 1...Ke1!
    • 1.Qc3?
      • threat
        • 2.Qd2#
        • 2.e3#
        • 2.e4#
      • 1...f1Q
        • 2.Qd2#
        • 2.Qd3#
      • 1...f1S
        • 2.e3#
        • 2.e4#
      • 1...f1B
        • 2.Qd2#
        • 2.Qd3#
      • 1...f1R
        • 2.Qd2#
        • 2.Qd3#
      • 1...bxc3!
    • 1.Qc4?
      • 1...f1Q
        • 2.Qd3#
      • 1...f1S
        • 2.e3#
        • 2.e4#
      • 1...f1B
        • 2.Qd3#
      • 1...f1R
        • 2.Qd3#
      • 1...Ke1!
    • 1.Qd7+?
      • 1...Kxc2
        • 2.Qd3#
      • 1...Ke1!
  • Keys
    • 1.Qh7!
      • 1...Ke1
        • 2.Qh1#
      • 1...f1Q
        • 2.Qd3#
      • 1...f1S
        • 2.e3#
      • 1...f1B
        • 2.Qd3#
      • 1...f1R
        • 2.Qd3#

Anticipated by 129695(1902)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • K(A);S_FLIGHT
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::QAR2(G)
        • P(b);::QAR1(G)
      • Refutation
        • K(a);S_FLIGHT,XP(B)
    • Try
      • Q(G);CHECK
      • Vars
        • K(a);S_FLIGHT,XP(B)::QAB1(G)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • Q(G);CHECK
      • Vars
        • K(a);S_FLIGHT,XP(B)::QAB1(G)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • Q(G);
      • Threat
        • DUALS(3)
      • Refutation
        • P(c);XQ(G)
    • Try
      • Q(G);
      • Vars
        • P(b);::QAR2(G)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • Q(G);CHECK
      • Vars
        • K(a);S_FLIGHT,XP(B)::QAB1(G)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
  • Actual
    • Q(G);
    • Vars
      • K(a);P-FLIGHT,P_SPINP(b)::QAR(G)
      • P(b);::QAR2(G)
      • P(b);::B(F)+P(C)
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