MESON Chess Problem Database

Problem Display
PID: 66782 (K1BR4/6p1/1N4p1/1pP1p3/1P2k3/nN4Q1/1p1pr2B/1qbr3b w - - 0 1)

Gorbatenko, Yuri Grigorevich

5th HM., Probleemblad, 1996

K1BR4/6p1/1N4p1/1pP1p3/1P2k3/nN4Q1/1p1pr2B/1qbr3b

#2

9 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Qa2
      • 2.Qd3#
    • 1...Qd3
      • 2.Qxd3#
    • 1...Qa1
      • 2.Qd3#
    • 1...Re3
      • 2.Qg4#
    • 1...Bf3
      • 2.Qxe5#
    • 1...Sc2
      • 2.Qd3#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Bb7#
      • 1...exd4
        • 2.Re8#
      • 1...Re3
        • 2.Qxg6#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Qa2!
    • 1.Sd5?
      • threat
        • 2.Sc3#
      • 1...Re3
        • 2.Qxe3#
      • 1...Bf3
        • 2.Qxg6#
      • 1...Qd3
        • 2.Qg4#
      • 1...Qc2!
    • 1.Rd5?
      • threat
        • 2.Rxe5#
      • 1...Bf3
        • 2.Qxe5#
      • 1...Re3
        • 2.Qg4#
      • 1...Sc4!
    • 1.c6?
      • threat
        • 2.Sc5#
      • 1...Bf3
        • 2.Qxe5#
      • 1...Qc2!
  • Keys
    • 1.Rf8!
      • threat
        • 2.Bb7#
      • 1...Re3
        • 2.Qxg6#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Qd3
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • Q(a);N_GUARD::QAB1(C)
    • Q(a);N_GUARD::QAB1(C),XQ(a)
    • R(g);SBLOCK::QAR2(C)
    • B(d);SBLOCK::QAR1(C),XP(k)
    • S(h);S_CUTQ(a)::QAB1(C)
  • Tries
    • Try
      • S(B);
      • Threat
        • B(H)
      • Vars
        • P(k);OGATEB,SBLOCK,XS(B)::R(I)
        • R(g);SBLOCK::QAB(C),XP(l)
        • B(d);N_GUARD::QAB1(C),XB(d)
      • Refutation
        • Q(a);
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • R(g);N_GUARD::QAR1(C),XR(g)
        • B(d);SBLOCK::QAB(C),XP(l)
        • Q(a);SBLOCK::QAR2(C)
      • Refutation
        • Q(a);
    • Try
      • R(I);
      • Threat
        • R1(I),XP(k)
      • Vars
        • B(d);SBLOCK::QAR1(C),XP(k)
        • R(g);SBLOCK::QAR2(C)
      • Refutation
        • S(h);
    • Try
      • P(E);
      • Threat
        • S(B)
      • Vars
        • B(d);SBLOCK::QAR1(C),XP(k)
      • Refutation
        • Q(a);
  • Actual
    • R(I);
    • Threat
      • B(H)
    • Vars
      • R(g);SBLOCK::QAB(C),XP(l)
      • B(d);N_GUARD::QAB1(C),XB(d)
      • Q(a);SBLOCK::QAR1(C),XP(k)
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