MESON Chess Problem Database

Problem Display
PID: 110317 (6n1/1p6/1B1K1p2/pR1N1PqR/4kPQ1/1N1rr1P1/3P2P1/1B1bb3 w - - 0 1)

Mlynka, Karol

Sp. Comm., Lacny-50 JT, 1976

6n1/1p6/1B1K1p2/pR1N1PqR/4kPQ1/1N1rr1P1/3P2P1/1B1bb3

#2

13 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf4+
      • 2.Qxf4#
    • 1...Qxf5
      • 2.Qxf5#
    • 1...Re2
      • 2.fxg5#
    • 1...Bc2
      • 2.fxg5#
    • 1...Bxb3
      • 2.fxg5#
    • 1...Bxd2
      • 2.Sxd2#
    • 1...a4
      • 2.Rb4#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Sc3#
      • 1...Qxf4+
        • 2.Qxf4#
      • 1...Bc2
        • 2.fxg5#
      • 1...Bxd2!
    • 1.Bd4?
      • threat
        • 2.Sc3#
      • 1...Qxf4+
        • 2.Qxf4#
      • 1...Bxb3
        • 2.fxg5#
      • 1...Bc2
        • 2.fxg5#
      • 1...Bxd2!
    • 1.Rxa5?
      • threat
        • 2.Ra4#
      • 1...Qxf4+
        • 2.Qxf4#
      • 1...Bxb3
        • 2.fxg5#
      • 1...Bxd2
        • 2.Sxd2#
      • 1...Bc2
        • 2.fxg5#
      • 1...Bxg4!
    • 1.Rc5?
      • threat
        • 2.Rc4#
      • 1...Qxf4+
        • 2.Qxf4#
      • 1...Bxb3
        • 2.fxg5#
      • 1...Bc2
        • 2.fxg5#
      • 1...Bxg4!
  • Keys
    • 1.Ke6!
      • threat
        • 2.Sc3#
      • 1...Qxf5+
        • 2.Qxf5#
      • 1...Bxb3
        • 2.fxg5#
      • 1...Bxd2
        • 2.Sxd2#
      • 1...Bc2
        • 2.fxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • Q(g);CHECK,OGATE,P_SPINQ(g),XP(F)::QAR1(G),XQ(g)
    • Q(g);OGATE,XP(J)::QAB1(G),XQ(g)
    • R(d);S_CUTB(a)::QAR(G)+P(F),XQ(g)
    • B(a);N_GUARD,N_SPINR(c)::QAR(G)+P(F),XQ(g)
    • B(a);N_GUARD,XS(D)::QAR(G)+P(F),XQ(g)
    • B(b);XP(B)::S(D),XB(b)
    • P(f);N_GUARD::R(H)
  • Tries
    • Try
      • S(D);N_SPINS(I)
      • Threat
        • S(I)
      • Vars
        • Q(g);CHECK,OGATE,P_SPINQ(g),XP(F)::QAR1(G),XQ(g)
        • B(a);N_GUARD,N_SPINR(c)::QAR(G)+P(F),XQ(g)
      • Refutation
        • B(b);XP(B)
    • Try
      • B(L);N_SPINS(I)
      • Threat
        • S(I)
      • Vars
        • Q(g);CHECK,OGATE,P_SPINQ(g),XP(F)::QAR1(G),XQ(g)
        • B(a);N_GUARD,XS(D)::QAR(G)+P(F),XQ(g)
        • B(a);N_GUARD,N_SPINR(c)::QAR(G)+P(F),XQ(g)
      • Refutation
        • B(b);XP(B)
    • Try
      • R(H);XP(f)
      • Threat
        • R(H)
      • Vars
        • Q(g);CHECK,OGATE,P_SPINQ(g),XP(F)::QAR1(G),XQ(g)
        • B(a);N_GUARD,XS(D)::QAR(G)+P(F),XQ(g)
        • B(b);XP(B)::S(D),XB(b)
        • B(a);N_GUARD,N_SPINR(c)::QAR(G)+P(F),XQ(g)
      • Refutation
        • B(a);XQ(G)
    • Try
      • R(H);
      • Threat
        • R(H)
      • Vars
        • Q(g);CHECK,OGATE,P_SPINQ(g),XP(F)::QAR1(G),XQ(g)
        • B(a);N_GUARD,XS(D)::QAR(G)+P(F),XQ(g)
        • B(a);N_GUARD,N_SPINR(c)::QAR(G)+P(F),XQ(g)
      • Refutation
        • B(a);XQ(G)
  • Actual
    • K(M);N_SPINS(I),P-FLIGHT
    • Threat
      • S(I)
    • Vars
      • Q(g);CHECK,OGATE,XP(J)::QAB1(G),XQ(g)
      • B(a);N_GUARD,P_PINS(I),XS(D)::QAR(G)+P(F),XQ(g)
      • B(b);XP(B)::S(D),XB(b)
      • B(a);N_GUARD,N_SPINR(c)::QAR(G)+P(F),XQ(g)
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