MESON Chess Problem Database

Problem Display
PID: 72833 (5K2/1Bn1R3/4rp2/1p1rb3/1RqNkpP1/nP2pN2/2P3P1/3Q4 w - - 0 1)

Kapros, Jorge Marcelo

Problemesis, 2002

5K2/1Bn1R3/4rp2/1p1rb3/1RqNkpP1/nP2pN2/2P3P1/3Q4

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3
      • 2.Qxd3#
      • 2.cxd3#
    • 1...Qxb4
      • 2.Qd3#
    • 1...Qxd4
      • 2.Qd3#
    • 1...Qc5
      • 2.Qd3#
    • 1...Qc6
      • 2.Qd3#
    • 1...f5
      • 2.Sg5#
  • Tries
    • 1.Se2?
      • threat
        • 2.Qd3#
      • 1...Sxc2
        • 2.Qxc2#
      • 1...Rc6
        • 2.Sc3#
      • 1...Bd4!
    • 1.Sf5?
      • threat
        • 2.Qd3#
      • 1...Sxc2
        • 2.Qxc2#
      • 1...Bd4
        • 2.Sd6#
      • 1...Rc6!
    • 1.Sxe6?
      • threat
        • 2.Sc5#
        • 2.Qd3#
      • 1...Qxb4
        • 2.Qd3#
      • 1...Sxc2
        • 2.Sc5#
        • 2.Qxc2#
      • 1...e2
        • 2.Qxe2#
        • 2.Qd3#
      • 1...Bd4
        • 2.Sc5#
        • 2.Seg5#
      • 1...Sa6
        • 2.Bxd5#
        • 2.Qd3#
        • 2.Qxd5#
      • 1...Sxe6+!
    • 1.Rxc4?
      • threat
        • 2.Qd3#
      • 1...Sxc2
        • 2.Qxc2#
      • 1...bxc4!
    • 1.bxc4?
      • threat
        • 2.Qd3#
      • 1...Sxc2
        • 2.Qxc2#
      • 1...bxc4!
  • Keys
    • 1.Sxb5!
      • threat
        • 2.Qd3#
      • 1...Sxc2
        • 2.Qxc2#
      • 1...Rc6
        • 2.Sc3#
      • 1...Bd4
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • Q(c);N_GUARD,P_PINR(J),XR(F)::QAB1(A)
    • Q(c);N_GUARD,P_SPINQ(c),XS(G)::QAB1(A)
    • Q(c);N_GUARD,P_PINR(J)::QAB1(A)
    • Q(c);N_GUARD,N_SPINR(g)::QAB1(A)
    • P(j);N_GUARD::S(E)
  • Tries
    • Try
      • S(G);P_PINQ(c)
      • Threat
        • QAB1(A)
      • Vars
        • S(a);OGATE,XP(B)::QAB(A),XS(a)
        • R(i);N_SPINR(g),P_SPINB(h)::S(G)
      • Refutation
        • B(h);N_SPINQ(c)
    • Try
      • S(G);P_PINQ(c)
      • Threat
        • QAB1(A)
      • Vars
        • S(a);OGATE,XP(B)::QAB(A),XS(a)
        • B(h);N_GUARD,N_SPINQ(c),S_CUTR(i)::S(G)
      • Refutation
        • R(i);N_SPINR(g),P_SPINB(h)
    • Try
      • S(G);P_PINQ(c),XR(i)
      • Threat
        • DUALS(2)
      • Vars
        • Q(c);N_SPINQ(c),P_PINR(J),XR(F)::QAB1(A)
      • Refutation
        • S(k);CHECK,XS(G)
    • Try
      • R(F);XQ(c)
      • Threat
        • QAB1(A)
      • Vars
        • S(a);OGATE,XP(B)::QAB(A),XS(a)
      • Refutation
        • P(f);XR(F)
    • Try
      • P(D);XQ(c)
      • Threat
        • QAB1(A)
      • Vars
        • S(a);OGATE,XP(B)::QAB(A),XS(a)
      • Refutation
        • P(f);XP(D)
  • Actual
    • S(G);P_PINQ(c),XP(f)
    • Threat
      • QAB1(A)
    • Vars
      • S(a);OGATE,XP(B)::QAB(A),XS(a)
      • R(i);N_SPINR(g),P_SPINB(h)::S(G)
      • B(h);N_GUARD,N_SPINQ(c),S_CUTR(i)::S(G)
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