MESON Chess Problem Database

Problem Display
PID: 104358 (1B2n3/5R2/4p3/Q2q2k1/p1p5/r4pK1/3bbN2/1B5R w - - 0 1)

Kapica, Ryszard

Warzawskie Kolo Probl.-50 JT, 1982

1B2n3/5R2/4p3/Q2q2k1/p1p5/r4pK1/3bbN2/1B5R

#2

7 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5+
      • 2.Qxe5#
    • 1...Re3
      • 2.Bf4#
    • 1...Be1
      • 2.Bf4#
    • 1...Bc3
      • 2.Bf4#
    • 1...Bb4
      • 2.Bf4#
    • 1...Bf4+
      • 2.Bxf4#
    • 1...Bxa5
      • 2.Bf4#
    • 1...Sd6
      • 2.Qd8#
    • 1...Sf6
      • 2.Rg7#
  • Tries
    • 1.Sh3+?
      • 1...Kh6
        • 2.Rh7#
      • 1...Kh5!
    • 1.Qxd2+?
      • 1...Re3
        • 2.Bf4#
        • 2.Qxe3#
      • 1...Qxd2!
    • 1.Qd8+?
      • 1...Sf6
        • 2.Rg7#
        • 2.Qxf6#
      • 1...Qxd8!
    • 1.Qxd5+?
      • 1...e5
        • 2.Qxe5#
      • 1...exd5!
  • Keys
    • 1.Bh7!
      • threat
        • 2.Se4#
      • 1...Qe5+
        • 2.Qxe5#
      • 1...Bf4+
        • 2.Bxf4#
      • 1...Bxa5
        • 2.Bf4#
      • 1...Re3
        • 2.Bf4#
      • 1...Be1
        • 2.Bf4#
      • 1...Bd3
        • 2.Qxd2#
      • 1...Sd6
        • 2.Qd8#
      • 1...Sf6
        • 2.Rg7#
      • 1...e5
        • 2.Rf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(g);CHECK,OGATE::QAR2(E),XQ(g)
    • R(c);S_CUTB(a)::B(G)
    • B(a);N_GUARD,P_PINS(C)::B(G)
    • B(a);N_GUARD::B(G)
    • B(a);CHECK,N_GUARD::B(G),XB(a)
    • B(a);N_GUARD,N_SPINQ(g),XQ(E)::B(G)
    • S(j);N_GUARD::QAB(E)
    • S(j);N_GUARD,SBLOCK::R(F)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(h);N_SPINQ(g),S_FLIGHT::R1(F)
      • Refutation
        • K(h);P-FLIGHT
    • Try
      • Q(E);CHECK,N_PINQ(g),XB(a)
      • Refutation
        • Q(g);XQ(E)
    • Try
      • Q(E);CHECK,N_PINQ(g)
      • Refutation
        • Q(g);XQ(E)
    • Try
      • Q(E);CHECK,XQ(g)
      • Vars
        • P(i);P_SPINP(i)::QAR2(E),XP(i)
      • Refutation
        • P(i);XQ(E)
  • Actual
    • B(A);
    • Threat
      • S(C)
    • Vars
      • Q(g);CHECK,OGATE::QAR2(E),XQ(g)
      • B(a);CHECK,N_GUARD::B(G),XB(a)
      • B(a);N_GUARD,N_SPINQ(g),XQ(E)::B(G)
      • R(c);S_CUTB(a)::B(G)
      • B(a);N_GUARD,P_PINS(C)::B(G)
      • B(b);S_CUTR(c)::QAB(E),XB(a)
      • S(j);N_GUARD::QAB(E)
      • S(j);N_GUARD,SBLOCK::R(F)
      • P(i);N_GUARD,N_SPINQ(g),S_CUTQ(g)::R1(F)
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