MESON Chess Problem Database

Problem Display
PID: 96377 (8/8/8/2p1p3/R1p1B3/2kp4/K2n1Q2/2N5 w - - 0 1)

Vecu, Florea

di Sarno, Giuseppe

Best Problems, 2003

8/8/8/2p1p3/R1p1B3/2kp4/K2n1Q2/2N5

#2

5 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sb1
      • 2.Qb2#
    • 1...Sf1
      • 2.Qb2#
    • 1...Sb3
      • 2.Qb2#
    • 1...Sf3
      • 2.Qb2#
    • 1...Sxe4
      • 2.Qb2#
  • Tries
    • 1.Se2+?
      • 1...dxe2
        • 2.Qe3#
      • 1...Kc2!
    • 1.Sb3?
      • threat
        • 2.Qxd2#
      • 1...Kc2
        • 2.Qxd2#
      • 1...Sxb3
        • 2.Qb2#
      • 1...Sxe4
        • 2.Qb2#
      • 1...Sb1
        • 2.Qb2#
      • 1...Sf1
        • 2.Qb2#
      • 1...Sf3
        • 2.Qb2#
      • 1...cxb3+!
    • 1.Bxd3?
      • 1...e4
        • 2.Qf6#
      • 1...Sb1
        • 2.Rxc4#
        • 2.Qb2#
      • 1...Sf1
        • 2.Rxc4#
        • 2.Qb2#
      • 1...Sb3
        • 2.Rxc4#
        • 2.Qb2#
      • 1...Sf3
        • 2.Rxc4#
        • 2.Qb2#
      • 1...Se4
        • 2.Rxc4#
        • 2.Qb2#
      • 1...cxd3!
    • 1.Bf3?
      • 1...Kc2
        • 2.Rxc4#
      • 1...Sxf3
        • 2.Qb2#
      • 1...Sb1
        • 2.Qb2#
      • 1...Sf1
        • 2.Qb2#
      • 1...Sb3
        • 2.Qb2#
      • 1...Se4
        • 2.Qb2#
      • 1...e4!
    • 1.Qxd2+?
      • 1...Kd4
        • 2.Qxd3#
      • 1...Kxd2!
  • Keys
    • 1.Qe2!
      • 1...Kc2
        • 2.Rxc4#
      • 1...Kd4
        • 2.Qxd3#
      • 1...Sxe4
        • 2.Qb2#
      • 1...dxe2
        • 2.Sxe2#
      • 1...Sb1
        • 2.Qb2#
      • 1...Sf1
        • 2.Qb2#
      • 1...Sb3
        • 2.Qb2#
      • 1...Sf3
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE::QAB1(C)
    • S(a);OGATE,XB(E)::QAB1(C)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • P(c);XS(A)::QAR2(C)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(c)
    • Try
      • S(A);
      • Threat
        • QAB1(C),XS(a)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(c),P_SPINS(a)::QAR1(C),XS(a)
        • S(a);OGATE,XS(A)::QAB1(C)
        • S(a);OGATE,XB(E)::QAB1(C)
        • S(a);OGATE::QAB1(C)
      • Refutation
        • P(d);CHECK,XS(A)
    • Try
      • B(E);XP(c)
      • Vars
        • P(f);OGATEB::QAB(C)
      • Refutation
        • P(d);XB(E)
    • Try
      • B(E);
      • Vars
        • K(b);P-FLIGHT,P_SPINS(a)::R(D),XP(d)
        • S(a);OGATE,XB(E)::QAB1(C)
        • S(a);OGATE::QAB1(C)
      • Refutation
        • P(f);
    • Try
      • Q(C);CHECK,XS(a)
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT::QAR1(C),XP(c)
      • Refutation
        • K(b);S_FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(b);P-FLIGHT,P_SPINP(c),P_SPINS(a)::R(D),XP(d)
      • K(b);P_SPINP(d),S_FLIGHT::QAR1(C),XP(c)
      • S(a);OGATE,XB(E)::QAB1(C)
      • P(c);XQ(C)::S(A),XP(c)
      • S(a);OGATE::QAB1(C)
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