MESON Chess Problem Database

Problem Display
PID: 222392 (6B1/3p1r2/5Rpp/2p3p1/2P1k3/2K3PN/3P1Q1r/3N1n1b w - - 0 1)

Fiala, Karel

Svetozor, 1884

6B1/3p1r2/5Rpp/2p3p1/2P1k3/2K3PN/3P1Q1r/3N1n1b

#2

9 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd2
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...Sxg3
      • 2.Qe3#
    • 1...g4
      • 2.Qf4#
    • 1...d5
      • 2.Re6#
    • 1...d6
      • 2.Re6#
  • Tries
    • 1.Sxg5+?
      • 1...Ke5
        • 2.Qf4#
      • 1...hxg5!
    • 1.Qe1+?
      • 1...Se3
        • 2.Qxe3#
      • 1...Re2!
    • 1.Qxc5?
      • threat
        • 2.Qd4#
        • 2.Qd5#
        • 2.d3#
      • 1...Rxf6
        • 2.Qd5#
      • 1...Sxd2
        • 2.Qe3#
        • 2.Qd4#
        • 2.Qd5#
      • 1...d5
        • 2.Qd4#
        • 2.Qxd5#
      • 1...Se3
        • 2.Qxe3#
        • 2.Qd4#
        • 2.d3#
      • 1...Rxd2!
    • 1.Qe2+?
      • 1...Se3
        • 2.Qxe3#
      • 1...Rxe2!
  • Keys
    • 1.d4!
      • 1...cxd4+
        • 2.Qxd4#
      • 1...Rxf2
        • 2.Shxf2#
      • 1...Rxh3
        • 2.Qc2#
      • 1...Rxf6
        • 2.Bd5#
      • 1...Sxg3
        • 2.Qe3#
      • 1...Rg2
        • 2.Qf3#
      • 1...Re7
        • 2.Bd5#
      • 1...Rg7
        • 2.Bd5#
      • 1...Rh7
        • 2.Bd5#
      • 1...Rf8
        • 2.Bd5#
      • 1...Bg2
        • 2.Qc2#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Sd2
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...g4
        • 2.Qf4#
      • 1...h5
        • 2.Sxg5#
      • 1...d5
        • 2.Re6#
      • 1...d6
        • 2.Re6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD,XP(B)::QAR1(C)
    • S(a);N_GUARD::QAR1(C),XS(a)
    • S(a);N_GUARD,XP(E)::QAR1(C)
    • P(f);N_GUARD::QAR1(C)
    • P(i);N_GUARD::R(H)
  • Tries
    • Try
      • S(F);CHECK,XP(f)
      • Vars
        • K(d);P-FLIGHT::QAB1(C)
      • Refutation
        • P(h);XS(F)
    • Try
      • Q(C);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAR1(C),XS(a)
      • Refutation
        • R(c);P_SPINR(c)
    • Try
      • Q(C);XP(e)
      • Threat
        • DUALS(3)
      • Vars
        • R(j);XR(H)::QAB1(C)
      • Refutation
        • R(c);XP(B)
    • Try
      • Q(C);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAR1(C),XS(a)
      • Refutation
        • R(c);XQ(C)
  • Actual
    • P(B);
    • Vars
      • P(e);CHECK,OGATE,XP(B)::QAR1(C),XP(e)
      • R(c);XQ(C)::S(F),XR(c)
      • R(c);N_GUARD,P_PINP(E),XS(F)::QAB(C)
      • R(j);OGATE,XR(H)::B(I)
      • S(a);N_GUARD,XP(E)::QAR1(C)
      • R(c);S_CUTB(b)::QAB1(C)
      • R(j);OGATE::B(I)
      • B(b);S_CUTR(c)::QAB(C)
      • B(b);N_GUARD::QAB1(C),XB(b)
      • S(a);N_GUARD::QAR1(C)
      • S(a);N_GUARD::QAR1(C),XS(a)
      • P(f);N_GUARD::QAR1(C)
      • P(h);N_GUARD::S(F),XP(f)
      • P(i);N_GUARD::R(H)
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