MESON Chess Problem Database

Problem Display
PID: 201693 (6b1/p2q4/1p1p4/2p5/2k5/RR2p3/6Bp/3Qn2K w - - 0 1)

Kintzig, Robert

Uj Nemezdek, 1922

6b1/p2q4/1p1p4/2p5/2k5/RR2p3/6Bp/3Qn2K

#2

5 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Ra4#
    • 1...Qa4
      • 2.Rxa4#
      • 2.Qg4#
    • 1...Qg4
      • 2.Ra4#
      • 2.Qxg4#
    • 1...Qb5
      • 2.Qg4#
    • 1...Qf5
      • 2.Ra4#
    • 1...Qe6
      • 2.Ra4#
    • 1...Qc8
      • 2.Ra4#
    • 1...Qb7
      • 2.Ra4#
    • 1...Qc7
      • 2.Ra4#
      • 2.Qg4#
    • 1...Qe7
      • 2.Ra4#
    • 1...Qf7
      • 2.Ra4#
    • 1...Qg7
      • 2.Ra4#
    • 1...Qh7
      • 2.Ra4#
    • 1...Qd8
      • 2.Ra4#
      • 2.Qg4#
    • 1...Bd5
      • 2.Bxd5#
      • 2.Qxd5#
    • 1...Bh7
      • 2.Bd5#
      • 2.Qd5#
    • 1...Sc2
      • 2.Qd3#
    • 1...Sxg2
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sf3
      • 2.Qd3#
  • Tries
    • 1.Bf1+?
      • 1...Sd3
        • 2.Qxd3#
      • 1...e2!
    • 1.Rc3+?
      • 1...Kb5
        • 2.Qa4#
      • 1...Kb4!
    • 1.Qc2+?
      • 1...Kd4
        • 2.Qe4#
        • 2.Qc3#
      • 1...Sxc2!
    • 1.Qe2+?
      • 1...Sd3
        • 2.Qxd3#
      • 1...Kd4!
    • 1.Qc1+?
      • 1...Kd4
        • 2.Qc3#
      • 1...Sc2!
    • 1.Qxe1?
      • threat
        • 2.Qc3#
      • 1...Kd4
        • 2.Qc3#
      • 1...Qg7!
  • Keys
    • 1.Rb5!
      • threat
        • 2.Qa4#
      • 1...Kxb5
        • 2.Qa4#
      • 1...Qxb5
        • 2.Qg4#
      • 1...Sxg2
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sc2
        • 2.Qd3#
      • 1...Sf3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • Q(i);N_GUARD::R(D)
    • Q(i);N_GUARD::QAR(A)
    • Q(i);N_GUARD,P_PINB(C)::R(D)
    • S(a);N_GUARD::QAB1(A)
    • S(a);N_GUARD,XB(C)::QAB1(A)
    • S(a);N_GUARD::QAB1(A),XS(a)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • R(E);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB1(A)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);P-FLIGHT::QAB1(A)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • Q(A);XS(a)
      • Threat
        • QAR1(A)
      • Vars
        • K(d);P-FLIGHT::QAB1(A)
      • Refutation
        • Q(i);
  • Actual
    • R(E);
    • Threat
      • QAR2(A)
    • Vars
      • K(d);S_FLIGHT,XR(E)::QAB1(A)
      • Q(i);N_GUARD,SBLOCK,XR(E)::QAR(A)
      • S(a);N_GUARD,XB(C)::QAB1(A)
      • S(a);N_GUARD::QAB1(A),XS(a)
      • S(a);N_GUARD::QAB1(A)
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