MESON Chess Problem Database

Problem Display
PID: 45253 (5qr1/5Nn1/5b2/3pp3/b2pk1Bp/1r1R4/1NPB4/4K2R w K - 0 1)

Pribyl, Vaclav

5th Prize, Magyar Sakkelet, 1958

5qr1/5Nn1/5b2/3pp3/b2pk1Bp/1r1R4/1NPB4/4K2R

#2

8 + 11

3976 FIDE Album (1956-1958) 1961

SOLUTION

  • SOUND
  • Sets
    • 1...Qd6
      • 2.Sxd6#
    • 1...Qa8
      • 2.Sd6#
    • 1...Qc8
      • 2.Sd6#
    • 1...Qe8
      • 2.Sd6#
    • 1...Rxd3
      • 2.cxd3#
    • 1...Bg5
      • 2.Sxg5#
    • 1...Sf5
      • 2.Bf3#
  • Tries
    • 1.Kd1?
      • threat
        • 2.Re1#
      • 1...Bg5
        • 2.Sxg5#
      • 1...Sf5
        • 2.Bf3#
      • 1...Rxd3!
    • 1.Kf2?
      • threat
        • 2.Re1#
      • 1...Rxd3
        • 2.cxd3#
      • 1...Sf5
        • 2.Bf3#
      • 1...Bg5!
    • 1.0-0?
      • threat
        • 2.Re1#
      • 1...Rxd3
        • 2.cxd3#
      • 1...Bg5
        • 2.Sxg5#
      • 1...Sf5!
  • Keys
    • 1.Rh2!
      • threat
        • 2.Re2#
      • 1...Rxd3
        • 2.cxd3#
      • 1...Bg5
        • 2.Sxg5#
      • 1...Sf5
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • Q(j);N_GUARD::S(H),XQ(j)
    • Q(j);N_GUARD::S(H)
    • R(a);OGATE,XR(F)::P(D),XR(a)
    • B(h);N_GUARD::S(H),XB(h)
    • S(i);SBLOCK::B(G)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • R(B)
      • Vars
        • B(h);N_GUARD::S(H),XB(h)
        • S(i);SBLOCK::B(G)
      • Refutation
        • R(a);P_PINB(E),P_PINP(D),XR(F)
    • Try
      • K(A);S_FLIGHT
      • Threat
        • R(B)
      • Vars
        • R(a);OGATE,XR(F)::P(D),XR(a)
        • S(i);SBLOCK::B(G)
      • Refutation
        • B(h);P_PINS(H)
    • Try
      • K(A);0-0
      • Threat
        • R(B)
      • Vars
        • R(a);OGATE,XR(F)::P(D),XR(a)
        • B(h);N_GUARD::S(H),XB(h)
      • Refutation
        • S(i);P_PINB(G)
  • Actual
    • R(B);
    • Threat
      • R(B)
    • Vars
      • R(a);OGATE,XR(F)::P(D),XR(a)
      • B(h);N_GUARD::S(H),XB(h)
      • S(i);SBLOCK::B(G)
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