MESON Chess Problem Database

Problem Display
PID: 93860 (8/8/5R2/1B6/8/1r1NN2K/2P1kPP1/R3b3 w - - 0 1)

Pieprzyk, Rudolf

Sachove umeni (Ceskoslovensky sach), 1951

8/8/5R2/1B6/8/1r1NN2K/2P1kPP1/R3b3

#2

9 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rd1?
      • threat
        • 2.Sc1#
      • 1...Rxd3
        • 2.Bxd3#
      • 1...Bxf2!
  • Keys
    • 1.Sf1!
      • threat
        • 2.Rxe1#
      • 1...Rxd3+
        • 2.Bxd3#
      • 1...Kxf1
        • 2.Rxe1#
      • 1...Bxf2
        • 2.Rxf2#
      • 1...Rb1
        • 2.Sb2#
      • 1...Bd2
        • 2.Sg3#
      • 1...Bc3
        • 2.Sb4#
      • 1...Bb4
        • 2.Re6#
      • 1...Ba5
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Threat
        • B(H)+S(E),DCHECK
      • Vars
        • R(c);OGATE,P_PINS(F),P_SPINR(c),XS(E)::B(H),XR(c)
      • Refutation
        • B(a);XP(C)
  • Actual
    • S(F);P_SPINS(E)
    • Threat
      • R1(A),XB(a)
    • Vars
      • R(c);CHECK,OGATE,P_SPINR(c),XS(E)::B(H),XR(c)
      • K(b);P_SPINB(a),S_FLIGHT,XS(F)::R1(A),XB(a)
      • B(a);OGATE,XP(C)::R1(I),XB(a)
      • R(c);N_PINS(E)::B(H)+S(E)
      • B(a);SBLOCK::S(F)
      • B(a);N_PINS(E)::B(H)+S(E)
      • B(a);::R(I)
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