MESON Chess Problem Database

Problem Display
PID: 108557 (3R4/3NQ2q/1NR4p/r2B3r/b2kp2b/5P2/nn1PPp2/5K2 w - - 0 1)

Kapros, Jorge Marcelo

Sinfonie Scacchistiche, 1984

3R4/3NQ2q/1NR4p/r2B3r/b2kp2b/5P2/nn1PPp2/5K2

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qg8
      • 2.Qxe4#
    • 1...Qf7
      • 2.Qxe4#
    • 1...Qg7
      • 2.Qxe4#
    • 1...Qh8
      • 2.Qxe4#
    • 1...Rc5
      • 2.Qxc5#
    • 1...Ra6
      • 2.Qc5#
    • 1...Ra7
      • 2.Qc5#
    • 1...Ra8
      • 2.Qc5#
    • 1...Re5
      • 2.Qxe5#
    • 1...Rf5
      • 2.Qxe4#
    • 1...Bb5
      • 2.Qc5#
    • 1...Bg5
      • 2.Qe5#
    • 1...Sd1
      • 2.Rc4#
    • 1...Sd3
      • 2.Rc4#
      • 2.e3#
    • 1...Sc4
      • 2.Rxc4#
    • 1...exf3
      • 2.Qe3#
    • 1...e3
      • 2.Qxe3#
      • 2.dxe3#
  • Tries
    • 1.Bc4?
      • threat
        • 2.e3#
      • 1...Sxc4
        • 2.Rxc4#
      • 1...Bg5
        • 2.Sc5#
      • 1...e3
        • 2.Qxe3#
      • 1...Sd1!
    • 1.Rc3?
      • threat
        • 2.e3#
      • 1...Bb5
        • 2.Qc5#
      • 1...Bg5
        • 2.Qe5#
      • 1...Sd1
        • 2.Rc4#
      • 1...Sc4
        • 2.Rxc4#
      • 1...e3
        • 2.Qxe3#
      • 1...Sxc3!
    • 1.Qb4+?
      • 1...Sc4
        • 2.Rxc4#
        • 2.Qxc4#
      • 1...Sxb4!
    • 1.Qf6+?
      • 1...Re5
        • 2.Qxe5#
      • 1...Bxf6!
  • Keys
    • 1.Bxe4!
      • threat
        • 2.e3#
      • 1...Qxe4
        • 2.Qxe4#
      • 1...Bb5
        • 2.Se5#
      • 1...Bg5
        • 2.Sc5#
      • 1...Sd1
        • 2.Rc4#
      • 1...Sc4
        • 2.Rxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • Q(k);N_GUARD::QAR1(I),XP(f)
    • R(h);N_GUARD::QAB1(I),XR(h)
    • R(h);N_GUARD::QAB1(I)
    • R(i);N_GUARD::QAB1(I),XR(i)
    • R(i);S_CUTQ(k)::QAR1(I),XP(f)
    • B(d);P_PINP(C),S_CUTR(h)::QAB1(I)
    • B(g);S_CUTR(i)::QAB1(I)
    • S(b);N_GUARD::R1(G)
    • S(b);N_GUARD::R1(G),XS(b)
    • P(f);OGATE,XP(D)::QAB1(I)
  • Tries
    • Try
      • B(E);
      • Threat
        • P(C)
      • Vars
        • S(b);OGATE,XB(E)::R1(G),XS(b)
        • B(g);S_CUTR(i)::R(J)+S(H)
        • P(f);OGATE::QAB1(I),XP(f)
      • Refutation
        • S(b);
    • Try
      • R(G);
      • Threat
        • P(C)
      • Vars
        • B(d);P_PINP(C),S_CUTR(h)::QAB1(I)
        • B(g);S_CUTR(i)::QAB1(I)
        • S(b);N_GUARD::R1(G)
        • S(b);N_GUARD::R1(G),XS(b)
        • P(f);OGATE::QAB1(I),XP(f)
      • Refutation
        • S(a);XR(G)
    • Try
      • Q(I);CHECK
      • Refutation
        • S(a);XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • R(i);N_GUARD,P_SPINR(i)::QAB1(I),XR(i)
      • Refutation
        • B(g);XQ(I)
  • Actual
    • B(E);XP(f)
    • Threat
      • P(C)
    • Vars
      • Q(k);OGATE,XB(E)::QAR1(I),XQ(k)
      • B(d);P_PINP(C),S_CUTR(h)::R(J)+S(H)
      • B(g);S_CUTR(i)::R(J)+S(H)
      • S(b);N_GUARD::R1(G)
      • S(b);N_GUARD::R1(G),XS(b)
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