MESON Chess Problem Database

Problem Display
PID: 141122 (5R2/2pk4/P4P2/2PN4/1K1p1B2/4N1P1/3Q4/3R4 w - - 0 1)

Velimirovic, Milan

Tovaris, 1971

5R2/2pk4/P4P2/2PN4/1K1p1B2/4N1P1/3Q4/3R4

#2

11 + 3

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Tries
    • 1.Sb6+?
      • 1...Kc6
        • 2.Qg2#
      • 1...Ke6
        • 2.Qa2#
      • 1...cxb6!
    • 1.Qa2?
      • 1...Kc6
        • 2.Qa4#
      • 1...Ke6
        • 2.Sb6#
      • 1...dxe3
        • 2.Se7#
      • 1...c6
        • 2.Sb6#
      • 1...d3!
    • 1.Qg2?
      • 1...Kc6
        • 2.Sb6#
      • 1...Ke6
        • 2.Qh3#
      • 1...dxe3
        • 2.Sxc7#
      • 1...c6
        • 2.Qh3#
      • 1...d3!
    • 1.Qd3?
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke6
        • 2.Qf5#
      • 1...c6
        • 2.Qf5#
      • 1...dxe3!
    • 1.c6+?
      • 1...Ke6
        • 2.Sxc7#
      • 1...Kxc6!
  • Keys
    • 1.Qxd4!
      • 1...Kc6
        • 2.Se7#
      • 1...Ke6
        • 2.Sxc7#
      • 1...c6
        • 2.Sc7#

This is a version

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(H);CHECK,P_PINP(a)
      • Vars
        • K(c);N_SPINP(a),S_FLIGHT::QAB(B)
      • Refutation
        • P(b);XS(H)
    • Try
      • Q(B);
      • Vars
        • K(c);S_FLIGHT::QAB(B)
        • K(c);S_FLIGHT::QAB(B)+S(H)
        • P(a);XS(C)::R(A)+S(H)
        • P(b);N_GUARD,SBLOCK::S(H)
      • Refutation
        • P(a);
    • Try
      • Q(B);
      • Vars
        • K(c);S_FLIGHT::QAB(B)+S(H)
        • K(c);S_FLIGHT::QAB(B)
        • P(a);XS(C)::R(A)+S(H),XP(b)
        • P(b);SBLOCK::QAB(B)
      • Refutation
        • P(a);
    • Try
      • Q(B);
      • Vars
        • K(c);S_FLIGHT::QAB1(B)
        • P(b);SBLOCK::QAB(B)
      • Refutation
        • P(a);XS(C)
    • Try
      • P(G);CHECK
      • Vars
        • K(c);S_FLIGHT::S(H),XP(b)
      • Refutation
        • K(c);S_FLIGHT,XP(G)
  • Actual
    • Q(B);XP(a)
    • Vars
      • K(c);S_FLIGHT::S(H)
      • K(c);S_FLIGHT::S(H),XP(b)
      • P(b);SBLOCK::QAR(B)+S(H)
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