MESON Chess Problem Database

Problem Display
PID: 193657 (1K1RN3/3pk3/1n1R4/8/8/7Q/8/6B1 w - - 0 1)

von Sponer, Gyorgy Janos Andor

Pesti Naplo, 1915

1K1RN3/3pk3/1n1R4/8/8/7Q/8/6B1

#2

6 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Sg7?
      • 1...Kxd6
        • 2.Qe6#
      • 1...Kxd8
        • 2.Qh4#
      • 1...Sa4
        • 2.Qxd7#
      • 1...Sc4
        • 2.Qxd7#
      • 1...Sd5
        • 2.Qxd7#
      • 1...Sa8
        • 2.Qxd7#
      • 1...Sc8
        • 2.Qxd7#
      • 1...Kf7!
    • 1.R6xd7+?
      • 1...Kf8
        • 2.Sd6#
        • 2.Sf6#
        • 2.Sc7#
        • 2.Sg7#
        • 2.Qh8#
      • 1...Sxd7+!
    • 1.R8xd7+?
      • 1...Kxe8
        • 2.Qh8#
      • 1...Kf8
        • 2.Qh8#
      • 1...Sxd7+!
    • 1.Qf5?
      • threat
        • 2.Qf6#
      • 1...Sd5
        • 2.R6xd7#
      • 1...Kxd8!
    • 1.Qxd7+?
      • 1...Kf8
        • 2.Sf6#
        • 2.Sc7#
        • 2.Sg7#
        • 2.Qg7#
      • 1...Sxd7+!
    • 1.Qh6?
      • threat
        • 2.Qf6#
      • 1...Kf7
        • 2.Qg7#
      • 1...Sd5
        • 2.R6xd7#
      • 1...Kxd8!
    • 1.Qh7+?
      • 1...Kf8
        • 2.Sf6#
        • 2.Sc7#
        • 2.Rf6#
        • 2.Qg7#
      • 1...Kxd8!
    • 1.Qh8?
      • threat
        • 2.Qf6#
      • 1...Kf7
        • 2.Qg7#
      • 1...Sd5
        • 2.R8xd7#
      • 1...Kxd8!
  • Keys
    • 1.Sc7!
      • 1...Kxd6
        • 2.Qe6#
      • 1...Kf7
        • 2.Qh7#
      • 1...Kxd8
        • 2.Qh4#
      • 1...Sa4
        • 2.Qxd7#
      • 1...Sc4
        • 2.Qxd7#
      • 1...Sd5
        • 2.Qxd7#
      • 1...Sa8
        • 2.Qxd7#
      • 1...Sc8
        • 2.Qxd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT,XR(C)::QAR1(B)
        • K(c);P_SPINP(b),S_FLIGHT,XR(E)::QAB(B)
        • S(a);N_GUARD::QAR1(B),XP(b)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(C);CHECK,XP(b)
      • Refutation
        • S(a);CHECK,XR(C)
    • Try
      • R(E);CHECK,XP(b)
      • Vars
        • K(c);P-FLIGHT,XS(F)::QAR(B)
        • K(c);S_FLIGHT::QAR2(B)
      • Refutation
        • S(a);CHECK,XR(E)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • S(a);N_GUARD::R1(C),XP(b)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT,XR(E)
    • Try
      • Q(B);CHECK,XP(b)
      • Refutation
        • S(a);CHECK,XQ(B)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
        • S(a);N_GUARD::R1(C),XP(b)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT,XR(E)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT,XR(E)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
        • S(a);N_GUARD::R1(E),XP(b)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT,XR(E)
  • Actual
    • S(F);
    • Vars
      • K(c);P_SPINP(b),S_FLIGHT,XR(C)::QAR1(B)
      • K(c);P-FLIGHT::QAR2(B)
      • K(c);P_SPINP(b),S_FLIGHT,XR(E)::QAB(B)
      • S(a);N_GUARD::QAR1(B),XP(b)
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