Meson Chess Problem Database

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Problem Display

PID: 178220 (8/1p3r2/3pQ3/3N4/1PpkB2R/1npNRp2/K1p4r/2b3B1 w - - 0 1)

Kapros, Jorge Marcelo

Vratnica-64, 2005

8/1p3r2/3pQ3/3N4/1PpkB2R/1npNRp2/K1p4r/2b3B1

9 + 11

6490	yacpdb	2018

SOLUTION

SOUND
Sets
- 1...Rd2
  - 2.Bf5#
- 1...Re2
  - 2.Bf5#
- 1...Rf2
  - 2.Bf5#
- 1...Rf6
  - 2.Qxf6#
- 1...Rc7
  - 2.Qf6#
- 1...Rd7
  - 2.Qf6#
- 1...Rg7
  - 2.Qf6#
- 1...Rh7
  - 2.Qf6#
- 1...Bxe3
  - 2.Bxe3#
Tries
- 1.Sxc1?
  - threat
    - 2.Rd3#
  - 1...Rf2
    - 2.Bf5#
  - 1...f2
    - 2.Se2#
  - 1...Sxc1+!
- 1.Sb2?
  - threat
    - 2.Rd3#
  - 1...Bxe3
    - 2.Bxe3#
  - 1...Rf2
    - 2.Bf5#
  - 1...f2!
- 1.S3f4?
  - threat
    - 2.Rd3#
  - 1...Bxe3
    - 2.Bxe3#
  - 1...f2
    - 2.Se2#
  - 1...Rf2!
- 1.Sc5?
  - threat
    - 2.Rd3#
  - 1...Bxe3
    - 2.Bxe3#
  - 1...Rf2
    - 2.Bf5#
  - 1...f2!
- 1.Sb6?
  - threat
    - 2.Qxc4#
    - 2.Qd5#
    - 2.Qxd6#
  - 1...cxd3
    - 2.Rxd3#
    - 2.Qd5#
    - 2.Qxd6#
  - 1...Rf2
    - 2.Bf5#
  - 1...Rf5
    - 2.Qxc4#
  - 1...Rf6
    - 2.Qxc4#
    - 2.Qd5#
    - 2.Qxf6#
  - 1...Rc7
    - 2.Qd5#
    - 2.Qxd6#
    - 2.Qf6#
  - 1...Rd7
    - 2.Qxc4#
    - 2.Qd5#
    - 2.Qf6#
  - 1...Sd2
    - 2.Qd5#
    - 2.Qxd6#
  - 1...Sa5
    - 2.Qd5#
    - 2.Qxd6#
  - 1...d5
    - 2.Qxd5#
    - 2.Qe5#
  - 1...f2!
- 1.Sf6?
  - threat
    - 2.Qd5#
    - 2.Qxd6#
  - 1...Rxf6
    - 2.Qd5#
    - 2.Qxf6#
  - 1...cxd3
    - 2.Rxd3#
    - 2.Qd5#
  - 1...Rf2
    - 2.Bxf3#
    - 2.Bd5#
    - 2.Bf5#
    - 2.Bc6#
    - 2.Bg6#
    - 2.Bxb7#
    - 2.Bh7#
  - 1...Rd7
    - 2.Qd5#
  - 1...d5
    - 2.Qxd5#
    - 2.Qe5#
  - 1...f2!
- 1.Se7?
  - threat
    - 2.Qd5#
    - 2.Qxd6#
  - 1...cxd3
    - 2.Rxd3#
    - 2.Qd5#
  - 1...Rf2
    - 2.Bf5#
  - 1...Rf5
    - 2.Sxf5#
  - 1...Rf6
    - 2.Qd5#
    - 2.Qxf6#
  - 1...d5
    - 2.Qxd5#
    - 2.Qe5#
  - 1...f2!
- 1.Bxf3+?
  - 1...Rf4
    - 2.Rxf4#
    - 2.Qf6#
  - 1...Rxh4!
- 1.Bg6+?
  - 1...Rf4
    - 2.Rxf4#
  - 1...Rxh4!
- 1.Bh7+?
  - 1...Rf4
    - 2.Rxf4#
  - 1...Rxh4!
- 1.Rxf3+?
  - 1...Be3
    - 2.Bxe3#
  - 1...Rf2!
- 1.Qxf7?
  - threat
    - 2.Qf6#
    - 2.Qg7#
  - 1...Rg2
    - 2.Qf6#
  - 1...cxd3!
- 1.Qxd6?
  - threat
    - 2.S5f4#
    - 2.Sb6#
    - 2.Sf6#
    - 2.Sc7#
    - 2.Se7#
    - 2.Qe5#
  - 1...Bxe3
    - 2.Sxe3#
    - 2.Sb6#
    - 2.Sf6#
    - 2.Sc7#
    - 2.Se7#
    - 2.Bxe3#
    - 2.Qe5#
  - 1...cxd3
    - 2.Sb6#
  - 1...f2
    - 2.Qe5#
  - 1...Rf2
    - 2.Bf5#
    - 2.Qe5#
  - 1...Rf4
    - 2.S5xf4#
    - 2.Sb6#
    - 2.Sf6#
    - 2.Sc7#
    - 2.Se7#
    - 2.Qe5#
  - 1...Rf6
    - 2.Sxf6#
    - 2.Qe5#
    - 2.Qxf6#
  - 1...Rc7
    - 2.S5f4#
    - 2.Sb6#
    - 2.Sf6#
    - 2.Sxc7#
    - 2.Se7#
    - 2.Qe5#
    - 2.Qf6#
  - 1...Rd7
    - 2.Qe5#
    - 2.Qf6#
  - 1...Re7
    - 2.S5f4#
    - 2.Sb6#
    - 2.Sf6#
    - 2.Sc7#
    - 2.Sxe7#
  - 1...b6
    - 2.S5f4#
    - 2.Sxb6#
    - 2.Sf6#
    - 2.Sc7#
    - 2.Se7#
    - 2.Qe5#
  - 1...Rf5!
Keys
- 1.Se1!
  - threat
    - 2.Rd3#
  - 1...Bxe3
    - 2.Bxe3#
  - 1...Rf2
    - 2.Bf5#
  - 1...f2
    - 2.Sxc2#

FEATURES

Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
Sets
- R(c);N_GUARD::R(G)+B(F)
- R(k);N_GUARD::QAB(I),XR(k)
- R(k);N_GUARD::QAB(I)
- B(a);OGATE,P_SPINB(a),XR(D)::B(A),XB(a)
Tries
- Try
  - S(C);XB(a)
  - Threat
    - B(A)+R(D),DCHECK
  - Vars
    - R(c);N_GUARD::R(G)+B(F)
    - P(f);N_GUARD,S_CUTR(c)::S(C)
  - Refutation
    - S(d);CHECK,XS(C)
- Try
  - S(C);
  - Threat
    - B(A)+R(D),DCHECK
  - Vars
    - B(a);OGATE,P_SPINB(a),XR(D)::B(A),XB(a)
    - R(c);N_GUARD::R(G)+B(F)
  - Refutation
    - P(f);
- Try
  - S(C);
  - Threat
    - B(A)+R(D),DCHECK
  - Vars
    - B(a);OGATE,P_SPINB(a),XR(D)::B(A),XB(a)
    - P(f);N_GUARD,S_CUTR(c)::S(C)
  - Refutation
    - R(c);
- Try
  - S(C);
  - Threat
    - B(A)+R(D),DCHECK
  - Vars
    - B(a);OGATE,P_SPINB(a),XR(D)::B(A),XB(a)
    - R(c);N_GUARD::R(G)+B(F)
  - Refutation
    - P(f);
- Try
  - S(H);
  - Threat
    - DUALS(3)
  - Vars
    - R(c);N_GUARD::R(G)+B(F)
    - R(k);::QAR1(I),XP(g)
  - Refutation
    - P(f);
- Try
  - S(H);
  - Threat
    - DUALS(2)
  - Vars
    - R(k);::QAR1(I)
  - Refutation
    - P(f);
- Try
  - S(H);
  - Threat
    - DUALS(2)
  - Vars
    - R(c);N_GUARD::R(G)+B(F)
    - R(k);N_GUARD::S(H),XR(k)
  - Refutation
    - P(f);
- Try
  - B(F);CHECK,XP(f)
  - Refutation
    - R(c);XR(G)
- Try
  - B(F);CHECK
  - Vars
    - R(k);N_GUARD,P_SPINR(k)::R(G),XR(k)
  - Refutation
    - R(c);XR(G)
- Try
  - B(F);CHECK
  - Vars
    - R(k);N_GUARD,P_SPINR(k)::R(G),XR(k)
  - Refutation
    - R(c);XR(G)
- Try
  - R(D);CHECK,XP(f)
  - Vars
    - B(a);N_GUARD,P_SPINB(a)::B(A),XB(a)
  - Refutation
    - R(c);P_SPINR(c)
- Try
  - Q(I);XR(k)
  - Threat
    - DUALS(2)
  - Vars
    - R(c);::QAB(I)
  - Refutation
    - P(g);XS(C)
- Try
  - Q(I);XP(i)
  - Threat
    - DUALS(6)
  - Vars
    - P(g);XS(C)::QAR(I)+S(H)
    - P(f);::QAB1(I)
  - Refutation
    - R(k);
Actual
- S(C);
- Threat
  - B(A)+R(D),DCHECK
- Vars
  - B(a);OGATE,P_SPINB(a),XR(D)::B(A),XB(a)
  - R(c);N_GUARD::R(G)+B(F)
  - P(f);S_CUTR(c)::S(C),XP(b)

MESON Chess Problem Database

Problem Display

PID: 178220 (8/1p3r2/3pQ3/3N4/1PpkB2R/1npNRp2/K1p4r/2b3B1 w - - 0 1)

SOLUTION

FEATURES