MESON Chess Problem Database

Problem Display
PID: 207986 (8/5RQ1/8/8/8/4PNp1/3P1Nk1/4K3 w - - 0 1)

Rothwell, Stephen

Badische Neueste Nachrichten, 1991

8/5RQ1/8/8/8/4PNp1/3P1Nk1/4K3

#2

7 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sh1?
      • 1...Kh3
        • 2.Qxg3#
      • 1...Kxh1!
    • 1.Sd3?
      • 1...Kh3
        • 2.Sf4#
      • 1...Kh1!
    • 1.Se4?
      • 1...Kh3
        • 2.Qxg3#
      • 1...Kh1!
    • 1.Sg1?
      • 1...Kxg1
        • 2.Qxg3#
      • 1...Kh2!
    • 1.Sh2?
      • 1...Kg1
        • 2.Qxg3#
      • 1...Kxh2!
    • 1.Sd4?
      • 1...Kg1
        • 2.Qxg3#
      • 1...Kh2!
    • 1.Sh4+?
      • 1...Kg1
        • 2.Qxg3#
      • 1...Kh2!
    • 1.Se5?
      • 1...Kg1
        • 2.Qxg3#
      • 1...Kh2!
  • Keys
    • 1.Ra7!
      • 1...Kxf3
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::QAR1(G),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT,XS(C)
    • Try
      • S(C);
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::S(C)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::QAR1(G),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);P-FLIGHT,XS(E)::QAR2(G),XP(b)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);P-FLIGHT::QAR2(G),XP(b)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT,XS(E)
    • Try
      • S(E);
      • Vars
        • K(a);P-FLIGHT::QAR2(G),XP(b)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(G),XP(b)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);P-FLIGHT::QAR2(G),XP(b)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
  • Actual
    • R(F);
    • Vars
      • K(a);N_SPINP(b),OGATEB,S_FLIGHT,XS(E)::QAB(G)
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