MESON Chess Problem Database

Problem Display
PID: 32096 (1Q5N/2b1pr2/4r2p/2PR4/2RpPkBK/8/8/5N2 w - - 0 1)

Dragoun, Michal

Sulc, Radovan

Sachova skladba, 1990

1Q5N/2b1pr2/4r2p/2PR4/2RpPkBK/8/8/5N2

#2

9 + 7

3449 Czech Album (1988-1990) 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Rcxd4#
    • 1...Rxe4
      • 2.Sg6#
    • 1...d3
      • 2.e5#
  • Tries
    • 1.Sg6+?
      • 1...Kxe4
        • 2.Rcxd4#
        • 2.Rdxd4#
      • 1...Rxg6!
    • 1.Rcxd4?
      • threat
        • 2.e5#
      • 1...Rxe4
        • 2.Sg6#
      • 1...Re5
        • 2.Sg6#
      • 1...Be5!
    • 1.Rf5+?
      • 1...Kxe4
        • 2.Qb1#
      • 1...Rxf5!
    • 1.Qxc7+?
      • 1...Kxe4
        • 2.Rcxd4#
        • 2.Rdxd4#
      • 1...Re5
        • 2.Qxe5#
      • 1...Rd6!
    • 1.e5?
      • threat
        • 2.Rcxd4#
      • 1...Ke4
        • 2.Rcxd4#
      • 1...Rxe5!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qf3#
      • 1...Kxe4
        • 2.Rcxd4#
      • 1...d3
        • 2.e5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(b);N_SPINB(e),OGATEB,P-FLIGHT,P_SPINP(a),XP(C)::R1(B),XP(a)
    • R(c);N_GUARD,SBLOCK,XP(C)::S(I)
    • P(a);::R(B)+P(C)
  • Tries
    • Try
      • S(I);CHECK
      • Refutation
        • R(c);XS(I)
    • Try
      • R(B);XP(a)
      • Threat
        • R(B)+P(C)
      • Vars
        • R(c);N_GUARD,P_SPINR(c),XP(C)::S(I)
        • R(c);N_GUARD,N_SPINB(e)::S(I)
      • Refutation
        • B(e);
    • Try
      • R(G);CHECK
      • Vars
        • K(b);N_SPINB(e),P-FLIGHT,P_SPINP(a),XP(C)::QAB(H)
      • Refutation
        • R(g);XR(G)
    • Try
      • Q(H);CHECK,XB(e)
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAB1(H),XR(c)
      • Refutation
        • R(c);P_SPINR(c)
    • Try
      • P(C);N_PINB(e),P_PINP(a)
      • Threat
        • R(B),XP(a)
      • Vars
        • K(b);P-FLIGHT::R1(B),XP(a)
      • Refutation
        • R(c);XP(C)
  • Actual
    • Q(H);N_PINB(e)
    • Threat
      • QAR1(H)
    • Vars
      • K(b);OGATEB,P-FLIGHT,P_SPINP(a),XP(C)::R1(B),XP(a)
      • P(a);::R(B)+P(C)
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