MESON Chess Problem Database

Problem Display
PID: 98849 (8/2N1pr2/2Kb1NPq/2np1Bnp/3P4/PpBpp2p/1pk3bR/3RQ3 w - - 0 1)

Stoyanov, Kiril N

Problemas, 1975

8/2N1pr2/2Kb1NPq/2np1Bnp/3P4/PpBpp2p/1pk3bR/3RQ3

#2

11 + 15

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sa4
      • 2.Bxd3#
    • 1...Sa6
      • 2.Bxd3#
    • 1...Sce6
      • 2.Bxd3#
    • 1...Sb7
      • 2.Bxd3#
    • 1...Sd7
      • 2.Bxd3#
    • 1...b1S
      • 2.Rc1#
    • 1...b1B
      • 2.Rc1#
    • 1...e2
      • 2.Qd2#
  • Tries
    • 1.Sfxd5?
      • threat
        • 2.Qe2#
      • 1...b1S
        • 2.Rc1#
      • 1...Sce4
        • 2.Sxe3#
      • 1...Sf3
        • 2.Sb4#
      • 1...Sge4
        • 2.Sb4#
      • 1...e2
        • 2.Rd2#
        • 2.Qd2#
        • 2.Qxe2#
      • 1...Rxf5!
    • 1.Sa6?
      • threat
        • 2.Sb4#
      • 1...Sxa6
        • 2.Bxd3#
      • 1...Sa4
        • 2.Bxd3#
      • 1...Sce6
        • 2.Bxd3#
      • 1...Sb7
        • 2.Bxd3#
      • 1...Sd7
        • 2.Bxd3#
      • 1...Sce4!
    • 1.Rxg2+?
      • 1...e2
        • 2.Rxe2#
        • 2.Qd2#
      • 1...hxg2!
  • Keys
    • 1.Scxd5!
      • threat
        • 2.Qe2#
      • 1...b1S
        • 2.Rc1#
      • 1...Sce4
        • 2.Sxe3#
      • 1...Sf3
        • 2.Sb4#
      • 1...Sge4
        • 2.Sb4#
      • 1...e2
        • 2.Rd2#
        • 2.Qd2#
        • 2.Qxe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • S(h);N_GUARD::B(G),XP(e)
    • P(a);N_GUARD::R1(A)
    • P(f);N_GUARD,N_SPINB(c)::QAR1(B)
  • Tries
    • Try
      • S(I);P_SPINS(I),XP(i)
      • Threat
        • QAR2(B)
      • Vars
        • P(a);N_GUARD::R1(A)
        • S(h);N_PINS(I),N_SPINP(e)::S(I),XP(f)
        • S(j);N_PINS(I)::S(I)
        • S(j);N_PINS(I),N_SPINP(e)::S(I)
      • Refutation
        • R(o);N_SPINP(e),XB(G)
    • Try
      • S(K);
      • Threat
        • S(K)
      • Vars
        • S(h);N_GUARD,XS(K)::B(G),XP(e)
        • S(h);N_GUARD::B(G),XP(e)
      • Refutation
        • S(h);N_SPINP(e)
    • Try
      • R(C);CHECK,XB(c)
      • Refutation
        • P(g);XR(C)
  • Actual
    • S(K);P_SPINS(K),XP(i)
    • Threat
      • QAR2(B)
    • Vars
      • P(a);N_GUARD::R1(A)
      • S(h);N_PINS(K),N_SPINP(e)::S(K),XP(f)
      • S(j);N_PINS(K)::S(K)
      • S(j);N_PINS(K),N_SPINP(e)::S(K)
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