MESON Chess Problem Database

Problem Display
PID: 104580 (4Nr2/2B2pR1/2p4p/5k1P/7r/1Q3P1P/6B1/7K w - - 0 1)

Saletic, Slobodan

Mezija, 1999

4Nr2/2B2pR1/2p4p/5k1P/7r/1Q3P1P/6B1/7K

#2

9 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxh3+
      • 2.Bxh3#
    • 1...Re4
      • 2.fxe4#
    • 1...Rg4
      • 2.fxg4#
      • 2.hxg4#
    • 1...Rxe8
      • 2.Qxf7#
    • 1...Rg8
      • 2.Qxf7#
    • 1...Rh8
      • 2.Qxf7#
    • 1...c5
      • 2.Qd5#
  • Tries
    • 1.Rg6?
      • threat
        • 2.Sg7#
      • 1...Rxh3+
        • 2.Bxh3#
      • 1...Rxh5
        • 2.Qc2#
        • 2.Qb1#
        • 2.Qd3#
      • 1...Rxe8
        • 2.Qxf7#
      • 1...Rg8
        • 2.Qxf7#
      • 1...fxg6!
    • 1.Qc2+?
      • 1...Re4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Qb1+?
      • 1...Re4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Qd3+?
      • 1...Re4
        • 2.Qxe4#
      • 1...Ke6!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qe5#
      • 1...Rxh3+
        • 2.Bxh3#
      • 1...Rxe8
        • 2.Rxf7#
      • 1...Re4
        • 2.Qxe4#
      • 1...f6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(a);CHECK,OGATE,XP(E)::B(B),XR(a)
    • R(a);N_PINP(E),OGATE::P(D),XR(a)
    • R(f);N_GUARD,XS(I)::QAR2(C),XP(e)
    • R(f);N_GUARD::QAR2(C),XP(e)
    • P(c);N_GUARD::QAR2(C)
  • Tries
    • Try
      • R(H);
      • Threat
        • S(I)
      • Vars
        • R(a);CHECK,OGATE,XP(E)::B(B),XR(a)
        • R(f);N_GUARD,XS(I)::QAR2(C),XP(e)
        • R(f);N_GUARD::QAR2(C),XP(e)
      • Refutation
        • P(e);XR(H)
    • Try
      • Q(C);CHECK
      • Vars
        • R(a);N_GUARD,N_PINP(E),P_SPINR(a)::QAB1(C),XR(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • R(a);N_GUARD,N_PINP(E),P_SPINR(a)::QAB1(C),XR(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • R(a);N_GUARD,N_PINP(E),P_SPINR(a)::QAB1(C),XR(a)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • R(a);CHECK,OGATE,XP(E)::B(B),XR(a)
      • R(f);N_GUARD,XS(I)::R(H),XP(e)
      • R(a);N_GUARD,N_PINP(E)::QAB1(C),XR(a)
      • P(e);SBLOCK::S(I)
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