MESON Chess Problem Database

Problem Display
PID: 224245 (8/8/5RP1/3pp3/1P2kp1Q/4r2P/K1P3p1/1N2R1B1 w - - 0 1)

von Sponer, Gyorgy Janos Andor

Deutsche Schachzeitung, 1888

8/8/5RP1/3pp3/1P2kp1Q/4r2P/K1P3p1/1N2R1B1

#2

10 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Sd2#
      • 2.Rxe3#
    • 1...Rxe1
      • 2.Sd2#
    • 1...Re2
      • 2.Sd2#
  • Tries
    • 1.Sc3+?
      • 1...Kf3
        • 2.Rxe3#
        • 2.Qf2#
        • 2.Qg4#
      • 1...Kd4!
    • 1.Bxe3?
      • threat
        • 2.Sd2#
      • 1...Kf3
        • 2.Sd2#
      • 1...d4!
    • 1.Qh7?
      • 1...Kf3
        • 2.Rxe3#
      • 1...Rxe1
        • 2.Sd2#
      • 1...d4
        • 2.Qb7#
      • 1...Re2
        • 2.Sd2#
      • 1...f3
        • 2.Qh4#
      • 1...Kd4!
  • Keys
    • 1.Qh8!
      • 1...Kf3
        • 2.Rxe3#
      • 1...Kd4
        • 2.Rxf4#
      • 1...Rxe1
        • 2.Sd2#
      • 1...d4
        • 2.Qa8#
      • 1...Re2
        • 2.Sd2#
      • 1...f3
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(b);N_SPINR(b),XR(B)::S(A)
    • R(b);P_PINP(E)::S(A)
  • Tries
    • Try
      • S(A);CHECK
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • B(C);XR(b)
      • Threat
        • S(A)
      • Vars
        • K(c);S_FLIGHT::S(A)
      • Refutation
        • P(e);
    • Try
      • Q(H);N_PINP(d)
      • Vars
        • K(c);N_SPINR(b),P_SPINP(d),S_FLIGHT::R1(B),XR(b)
        • R(b);N_SPINR(b),XR(B)::S(A)
        • P(e);OGATEB,SBLOCK::QAB(H)
        • R(b);P_PINP(E)::S(A)
        • P(d);OGATEB::QAR(H)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(H);N_PINP(d)
    • Vars
      • K(c);N_SPINR(b),P_SPINP(d),S_FLIGHT::R1(B),XR(b)
      • K(c);P-FLIGHT::R(I),XP(d)
      • R(b);N_SPINR(b),XR(B)::S(A)
      • P(e);OGATEB,SBLOCK::QAB(H)
      • R(b);P_PINP(E)::S(A)
      • P(d);OGATEB::QAR(H)
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