MESON Chess Problem Database

Problem Display
PID: 254387 (8/3R3p/2n2p1K/8/3b1kP1/3P1NR1/7Q/8 w - - 0 1)

Matiko, Vasil

Zadachi i Etyudi, 2005

8/3R3p/2n2p1K/8/3b1kP1/3P1NR1/7Q/8

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qd2#
  • Tries
    • 1.Rg2+?
      • 1...Kxf3
        • 2.Qg3#
      • 1...Ke3!
    • 1.Rh3+?
      • 1...Ke3
        • 2.Se1#
        • 2.Sg1#
        • 2.Sd2#
        • 2.Sxd4#
        • 2.Sh4#
        • 2.Se5#
        • 2.Sg5#
        • 2.Qd2#
      • 1...Kxg4!
    • 1.Rxd4+?
      • 1...Ke3
        • 2.Qd2#
      • 1...Sxd4!
  • Keys
    • 1.Se5!
      • threat
        • 2.Rf3#
        • 2.Rh3#
      • 1...Kxe5
        • 2.Re3#
      • 1...Bxe5
        • 2.Qf2#
      • 1...Sxe5
        • 2.Rxd4#
      • 1...fxe5
        • 2.Rf7#
      • 1...Bg1
        • 2.Rf3#
      • 1...Bf2
        • 2.Rf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • K(b);N_GUARD,S_CUTB(a),S_FLIGHT::QAB1(A)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(b);N_GUARD,P-FLIGHT,XS(C)::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(D);CHECK
      • Refutation
        • K(b);P-FLIGHT,XP(E)
    • Try
      • R(G);CHECK,XB(a)
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAB1(A)
      • Refutation
        • S(c);XR(G)
  • Actual
    • S(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);N_GUARD,S_FLIGHT,XS(C)::QAB(A)+R(D),DCHECK
      • B(a);N_GUARD,SBLOCK,XS(C)::QAR2(A)
      • S(c);N_GUARD,SBLOCK,XS(C)::R(G),XB(a)
      • P(d);OGATEB,SBLOCK,XS(C)::R(G)
      • B(a);::QAB(A)+R(D),DCHECK
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