MESON Chess Problem Database

Problem Display
PID: 11847 (8/8/8/2K5/2Q5/pP6/kr6/7R w - - 0 1)

Babichev, Vladimir A

4th HM., Radianske slovo, 1972-1973

8/8/8/2K5/2Q5/pP6/kr6/7R

#2

4 + 3

3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Sets
    • 1...Rc2
      • 2.Qxc2#
  • Tries
    • 1.Qf1?
      • 1...Kxb3
        • 2.Qc4#
      • 1...Rxb3
        • 2.Qa1#
      • 1...Rb1
        • 2.Qxb1#
      • 1...Rd2
        • 2.Qb1#
      • 1...Re2
        • 2.Qb1#
      • 1...Rf2
        • 2.Qb1#
      • 1...Rg2
        • 2.Qb1#
      • 1...Rh2
        • 2.Qb1#
      • 1...Rc2+!
    • 1.Qd3?
      • 1...Rc2+
        • 2.Qxc2#
      • 1...Rb1
        • 2.Qxb1#
      • 1...Rd2
        • 2.Qb1#
      • 1...Re2
        • 2.Qb1#
      • 1...Rf2
        • 2.Qb1#
      • 1...Rg2
        • 2.Qb1#
      • 1...Rh2
        • 2.Qb1#
      • 1...Rxb3!
    • 1.Qc3?
      • 1...Rxb3
        • 2.Ra1#
        • 2.Qa1#
      • 1...Rc2
        • 2.Ra1#
        • 2.Qxc2#
      • 1...Rd2
        • 2.Ra1#
      • 1...Re2
        • 2.Ra1#
      • 1...Rf2
        • 2.Ra1#
      • 1...Rg2
        • 2.Ra1#
      • 1...Rh2
        • 2.Ra1#
      • 1...Rb1!
    • 1.Qe4?
      • 1...Rc2+
        • 2.Qxc2#
      • 1...Kxb3
        • 2.Qc4#
      • 1...Rb1
        • 2.Qxb1#
      • 1...Rd2
        • 2.Qb1#
      • 1...Re2
        • 2.Qb1#
      • 1...Rf2
        • 2.Qb1#
      • 1...Rg2
        • 2.Qb1#
      • 1...Rh2
        • 2.Qb1#
      • 1...Rxb3!
  • Keys
    • 1.Qc1!
      • 1...Rc2+
        • 2.Qxc2#
      • 1...Kxb3
        • 2.Qc4#
      • 1...Rxb3
        • 2.Qa1#
      • 1...Rb1
        • 2.Qxb1#
      • 1...Rd2
        • 2.Qb1#
      • 1...Re2
        • 2.Qb1#
      • 1...Rf2
        • 2.Qb1#
      • 1...Rg2
        • 2.Qb1#
      • 1...Rh2
        • 2.Qb1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(b);OGATEB,P_PINQ(C)::QAR2(C),XR(b)
  • Tries
    • Try
      • Q(C);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(B)::QAB1(C)
        • R(b);SBLOCK,XP(B)::QAR1(C)
        • R(b);N_GUARD::QAB1(C),XR(b)
        • R(b);N_GUARD::QAB1(C)
      • Refutation
        • R(b);CHECK
    • Try
      • Q(C);
      • Vars
        • R(b);CHECK,OGATEB::QAR2(C),XR(b)
        • R(b);N_GUARD::QAB1(C),XR(b)
        • R(b);N_GUARD::QAB1(C)
      • Refutation
        • R(b);XP(B)
    • Try
      • Q(C);
      • Vars
        • R(b);::R1(A)
        • R(b);SBLOCK::R1(A)
      • Refutation
        • R(b);
    • Try
      • Q(C);
      • Vars
        • R(b);CHECK,OGATEB::QAR2(C),XR(b)
        • K(a);OGATEB,S_FLIGHT,XP(B)::QAB1(C)
        • R(b);N_GUARD::QAB1(C),XR(b)
        • R(b);N_GUARD::QAB1(C)
      • Refutation
        • R(b);XP(B)
  • Actual
    • Q(C);
    • Vars
      • R(b);CHECK,OGATEB::QAR2(C),XR(b)
      • K(a);OGATEB,S_FLIGHT,XP(B)::QAB1(C)
      • R(b);SBLOCK,XP(B)::QAR1(C)
      • R(b);N_GUARD::QAB1(C),XR(b)
      • R(b);N_GUARD::QAB1(C)
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