MESON Chess Problem Database

Problem Display
PID: 70660 (8/pKQ5/8/1B1p2NR/2Pk3B/4r1P1/3P4/1bN5 w - - 0 1)

Svitek, Miroslav

Hlas l'udu, 1976

8/pKQ5/8/1B1p2NR/2Pk3B/4r1P1/3P4/1bN5

#2

10 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Se2#
    • 1...Re4
      • 2.Sf3#
    • 1...Bd3
      • 2.Sb3#
    • 1...Be4
      • 2.Se6#
    • 1...dxc4
      • 2.Qd6#
  • Tries
    • 1.Sb3+?
      • 1...Kd3
        • 2.cxd5#
      • 1...Rxb3!
    • 1.Sf3+?
      • 1...Ke4
        • 2.Qf4#
      • 1...Rxf3!
    • 1.Se6+?
      • 1...Ke4
        • 2.Qf4#
      • 1...Rxe6!
    • 1.Qf4+?
      • 1...Re4
        • 2.Se6#
      • 1...Be4
        • 2.Se6#
      • 1...Kc5!
    • 1.dxe3+?
      • 1...Kxe3
        • 2.Qf4#
      • 1...Kc3!
  • Keys
    • 1.Se4!
      • threat
        • 2.Qe5#
      • 1...Kxe4
        • 2.Qf4#
      • 1...Rxe4
        • 2.Rxd5#
      • 1...Bxe4
        • 2.Bf6#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(b);N_GUARD,SBLOCK::S(A)
    • R(b);N_GUARD,SBLOCK::S(G)
    • B(a);SBLOCK,S_CUTR(b)::S(A)
    • B(a);SBLOCK,S_CUTR(b)::S(G)
    • P(d);OGATEB,XP(D)::QAR2(J)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(c);P-FLIGHT::B(F)+P(D),XP(d)
      • Refutation
        • R(b);P_PINB(F),XS(A)
    • Try
      • S(G);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(J)
      • Refutation
        • R(b);XS(G)
    • Try
      • S(G);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(J)
      • Refutation
        • R(b);XS(G)
    • Try
      • Q(J);CHECK
      • Vars
        • R(b);P_SPINR(b)::S(G)
        • B(a);P_SPINB(a)::S(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(B);CHECK,XR(b)
      • Vars
        • K(c);S_FLIGHT,XP(B)::QAB1(J)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(G);
    • Threat
      • QAB1(J)
    • Vars
      • K(c);OGATEB,P-FLIGHT,XS(G)::QAR1(J)
      • R(b);SBLOCK,XS(G)::R1(H),XP(d)
      • B(a);SBLOCK,XS(G)::B(E)
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