MESON Chess Problem Database

Problem Display
PID: 104400 (2nK4/8/1pNkP3/1B1P3Q/P2nR2p/1pR5/2pB3b/2r5 w - - 0 1)

Mladenovic, Miodrag

Contromossa Scacchi, 1981

2nK4/8/1pNkP3/1B1P3Q/P2nR2p/1pR5/2pB3b/2r5

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Bf4#
      • 2.Qe5#
    • 1...Bf4
      • 2.Bxf4#
    • 1...Be5
      • 2.Qxe5#
    • 1...Sxc6+
      • 2.Rxc6#
    • 1...Sxe6+
      • 2.Rxe6#
  • Tries
    • 1.Rd3?
      • threat
        • 2.Bb4#
      • 1...Sxc6+
        • 2.dxc6#
      • 1...Sxe6+
        • 2.dxe6#
      • 1...Kc5
        • 2.Bb4#
      • 1...Be5!
    • 1.Rc4?
      • threat
        • 2.Bb4#
      • 1...Sxc6+
        • 2.Rxc6#
      • 1...Sxe6+
        • 2.Rxe6#
      • 1...Be5
        • 2.Qxe5#
      • 1...Sf5!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qd7#
      • 1...Sxc6+
        • 2.Qxc6#
      • 1...Sxe6+
        • 2.Qxe6#
      • 1...Kxd5
        • 2.Rxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(c);N_GUARD::B(A),XB(c)
    • B(c);N_GUARD::QAB1(G),XB(c)
    • S(e);CHECK,OGATE,XS(H)::R1(B),XS(e)
    • S(e);CHECK,OGATE,XP(I)::R1(D),XS(e)
  • Tries
    • Try
      • R(B);
      • Threat
        • B(A)
      • Vars
        • S(e);CHECK,OGATE,XS(H)::R(B)+P(F),XS(e)
        • S(e);CHECK,OGATE,XP(I)::R(B)+P(F),XS(e)
        • K(h);S_FLIGHT::B(A)
      • Refutation
        • B(c);
    • Try
      • R(B);
      • Threat
        • B(A)
      • Vars
        • S(e);CHECK,OGATE,XS(H)::R1(B),XS(e)
        • S(e);CHECK,OGATE,XP(I)::R1(D),XS(e)
        • B(c);N_GUARD::QAB1(G),XB(c)
      • Refutation
        • S(e);
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • S(e);CHECK,OGATE,XS(H)::QAR1(G),XS(e)
      • S(e);CHECK,OGATE,XP(I)::QAR1(G),XS(e)
      • K(h);OGATEB,P-FLIGHT,XP(F)::R1(D),XS(e)
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